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[software/sercom.git] / doc / schema / entregas.dia

diff --git a/doc/schema/entregas.dia b/doc/schema/entregas.dia
index da27b2abbb9b5a8297f3d688609d3d18238724e5..a0f4a1139e65cafea11927fe9173838890def6dc 100644 (file)
--- a/doc/schema/entregas.dia
+++ b/doc/schema/entregas.dia
@@ -28,7 +28,7 @@
           <dia:boolean val="true"/>
         </dia:attribute>
         <dia:attribute name="scaling">
-          <dia:real val="0.41389757394790649"/>
+          <dia:real val="0.36474108695983887"/>
         </dia:attribute>
         <dia:attribute name="fitto">
           <dia:boolean val="true"/>
@@ -71,16 +71,16 @@
   <dia:layer name="Fondo" visible="true">
     <dia:object type="UML - LargePackage" version="0" id="O0">
       <dia:attribute name="obj_pos">
-        <dia:point val="-18,-4"/>
+        <dia:point val="-23,-4"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="-18.05,-5.05;19.05,53.05"/>
+        <dia:rectangle val="-23.05,-5.05;19.05,53.05"/>
       </dia:attribute>
       <dia:attribute name="elem_corner">
-        <dia:point val="-18,-4"/>
+        <dia:point val="-23,-4"/>
       </dia:attribute>
       <dia:attribute name="elem_width">
-        <dia:real val="37"/>
+        <dia:real val="42"/>
       </dia:attribute>
       <dia:attribute name="elem_height">
         <dia:real val="57"/>
@@ -103,130 +103,22 @@
     </dia:object>
     <dia:object type="UML - Class" version="0" id="O1">
       <dia:attribute name="obj_pos">
-        <dia:point val="-17,39"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="-17.05,38.95;-14.2,40.45"/>
-      </dia:attribute>
-      <dia:attribute name="elem_corner">
-        <dia:point val="-17,39"/>
-      </dia:attribute>
-      <dia:attribute name="elem_width">
-        <dia:real val="2.75"/>
-      </dia:attribute>
-      <dia:attribute name="elem_height">
-        <dia:real val="1.3999999999999999"/>
-      </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>#curso#</dia:string>
-      </dia:attribute>
-      <dia:attribute name="stereotype">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="comment">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="abstract">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="suppress_attributes">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="suppress_operations">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="visible_attributes">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="visible_operations">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="visible_comments">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="wrap_operations">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="wrap_after_char">
-        <dia:int val="40"/>
-      </dia:attribute>
-      <dia:attribute name="comment_line_length">
-        <dia:int val="40"/>
-      </dia:attribute>
-      <dia:attribute name="comment_tagging">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="line_color">
-        <dia:color val="#000000"/>
-      </dia:attribute>
-      <dia:attribute name="fill_color">
-        <dia:color val="#ffffff"/>
-      </dia:attribute>
-      <dia:attribute name="text_color">
-        <dia:color val="#000000"/>
-      </dia:attribute>
-      <dia:attribute name="normal_font">
-        <dia:font family="monospace" style="0" name="Courier"/>
-      </dia:attribute>
-      <dia:attribute name="abstract_font">
-        <dia:font family="monospace" style="88" name="Courier-BoldOblique"/>
-      </dia:attribute>
-      <dia:attribute name="polymorphic_font">
-        <dia:font family="monospace" style="8" name="Courier-Oblique"/>
-      </dia:attribute>
-      <dia:attribute name="classname_font">
-        <dia:font family="sans" style="80" name="Helvetica-Bold"/>
-      </dia:attribute>
-      <dia:attribute name="abstract_classname_font">
-        <dia:font family="sans" style="88" name="Helvetica-BoldOblique"/>
-      </dia:attribute>
-      <dia:attribute name="comment_font">
-        <dia:font family="sans" style="8" name="Helvetica-Oblique"/>
-      </dia:attribute>
-      <dia:attribute name="normal_font_height">
-        <dia:real val="0.80000000000000004"/>
-      </dia:attribute>
-      <dia:attribute name="polymorphic_font_height">
-        <dia:real val="0.80000000000000004"/>
-      </dia:attribute>
-      <dia:attribute name="abstract_font_height">
-        <dia:real val="0.80000000000000004"/>
-      </dia:attribute>
-      <dia:attribute name="classname_font_height">
-        <dia:real val="1"/>
-      </dia:attribute>
-      <dia:attribute name="abstract_classname_font_height">
-        <dia:real val="1"/>
-      </dia:attribute>
-      <dia:attribute name="comment_font_height">
-        <dia:real val="1"/>
-      </dia:attribute>
-      <dia:attribute name="attributes"/>
-      <dia:attribute name="operations"/>
-      <dia:attribute name="template">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="templates"/>
-      <dia:childnode parent="O0"/>
-    </dia:object>
-    <dia:object type="UML - Class" version="0" id="O2">
-      <dia:attribute name="obj_pos">
-        <dia:point val="-10,-2"/>
+        <dia:point val="5,-3"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="-10.05,-2.05;-0.8,6.05"/>
+        <dia:rectangle val="4.95,-3.05;12.55,3.45"/>
       </dia:attribute>
       <dia:attribute name="elem_corner">
-        <dia:point val="-10,-2"/>
+        <dia:point val="5,-3"/>
       </dia:attribute>
       <dia:attribute name="elem_width">
-        <dia:real val="9.1500000000000004"/>
+        <dia:real val="7.5"/>
       </dia:attribute>
       <dia:attribute name="elem_height">
-        <dia:real val="8"/>
+        <dia:real val="6.4000000000000004"/>
       </dia:attribute>
       <dia:attribute name="name">
-        <dia:string>#instancia_de_entrega#</dia:string>
+        <dia:string>#entrega#</dia:string>
       </dia:attribute>
       <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
@@ -335,7 +227,7 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#ejercicio_id#</dia:string>
+            <dia:string>#instancia_id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
             <dia:string>#INT#</dia:string>
@@ -344,7 +236,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="comment">
-            <dia:string>#A que ejercicio pertenece la entrega#</dia:string>
+            <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
             <dia:enum val="2"/>
@@ -358,7 +250,7 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#numero#</dia:string>
+            <dia:string>#entregador_id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
             <dia:string>#INT#</dia:string>
@@ -367,33 +259,10 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="comment">
-            <dia:string>#Número de entrega (1ra instancia, 2da instancia, etc.)#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="2"/>
-          </dia:attribute>
-          <dia:attribute name="abstract">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="class_scope">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-        </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#inicio#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#DATE#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="value">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="comment">
-            <dia:string>#Fecha en la que se puede empezar a entregar#</dia:string>
-          </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+            <dia:enum val="2"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -404,7 +273,7 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#fin#</dia:string>
+            <dia:string>#fecha#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
             <dia:string>#DATE#</dia:string>
@@ -413,33 +282,10 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="comment">
-            <dia:string>#Fecha en la que vence la entrega#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="3"/>
-          </dia:attribute>
-          <dia:attribute name="abstract">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="class_scope">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-        </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#procesada#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#BOOL#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="value">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="comment">
-            <dia:string>#Indica si fue procesada la entrega o no#</dia:string>
-          </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+            <dia:enum val="2"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -450,7 +296,7 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#activo#</dia:string>
+            <dia:string>#correcta#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
             <dia:string>#BOOL#</dia:string>
@@ -502,24 +348,24 @@
       <dia:attribute name="templates"/>
       <dia:childnode parent="O0"/>
     </dia:object>
-    <dia:object type="UML - Class" version="0" id="O3">
+    <dia:object type="UML - Class" version="0" id="O2">
       <dia:attribute name="obj_pos">
-        <dia:point val="5,-3"/>
+        <dia:point val="8,5"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="4.95,-3.05;12.55,3.45"/>
+        <dia:rectangle val="7.95,4.95;15.55,13.85"/>
       </dia:attribute>
       <dia:attribute name="elem_corner">
-        <dia:point val="5,-3"/>
+        <dia:point val="8,5"/>
       </dia:attribute>
       <dia:attribute name="elem_width">
         <dia:real val="7.5"/>
       </dia:attribute>
       <dia:attribute name="elem_height">
-        <dia:real val="6.4000000000000004"/>
+        <dia:real val="8.7999999999999989"/>
       </dia:attribute>
       <dia:attribute name="name">
-        <dia:string>#entrega#</dia:string>
+        <dia:string>#correccion#</dia:string>
       </dia:attribute>
       <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
@@ -674,7 +520,53 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#fecha#</dia:string>
+            <dia:string>#entrega_id#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#INT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#corrector_id#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#INT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#asignado#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
             <dia:string>#DATE#</dia:string>
@@ -683,10 +575,33 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="comment">
+            <dia:string>#Fecha en que se asigno la entrega al corrector#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#corregido#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#DATE#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
             <dia:string>##</dia:string>
           </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>#Fecha en que se terminó de corregir (se puso la nota)#</dia:string>
+          </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="2"/>
+            <dia:enum val="3"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -697,10 +612,10 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#correcta#</dia:string>
+            <dia:string>#nota#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#BOOL#</dia:string>
+            <dia:string>#FLOAT#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -749,558 +664,831 @@
       <dia:attribute name="templates"/>
       <dia:childnode parent="O0"/>
     </dia:object>
-    <dia:object type="UML - Class" version="0" id="O4">
+    <dia:object type="UML - Association" version="1" id="O3">
       <dia:attribute name="obj_pos">
-        <dia:point val="-9,33"/>
+        <dia:point val="-9.13,36.22"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="-9.05,32.95;-1.55,38.65"/>
+        <dia:rectangle val="-12.48,35.52;-9.08,40.42"/>
       </dia:attribute>
-      <dia:attribute name="elem_corner">
-        <dia:point val="-9,33"/>
+      <dia:attribute name="orth_points">
+        <dia:point val="-9.13,36.22"/>
+        <dia:point val="-10.78,36.22"/>
+        <dia:point val="-10.78,39.52"/>
+        <dia:point val="-12.43,39.52"/>
       </dia:attribute>
-      <dia:attribute name="elem_width">
-        <dia:real val="7.4000000000000004"/>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
       </dia:attribute>
-      <dia:attribute name="elem_height">
-        <dia:real val="5.5999999999999996"/>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="true"/>
       </dia:attribute>
       <dia:attribute name="name">
-        <dia:string>#alumno_inscripto#</dia:string>
-      </dia:attribute>
-      <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
       </dia:attribute>
-      <dia:attribute name="comment">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="abstract">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="suppress_attributes">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="suppress_operations">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="visible_attributes">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="visible_operations">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="visible_comments">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="wrap_operations">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="wrap_after_char">
-        <dia:int val="40"/>
-      </dia:attribute>
-      <dia:attribute name="comment_line_length">
-        <dia:int val="40"/>
-      </dia:attribute>
-      <dia:attribute name="comment_tagging">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="line_color">
-        <dia:color val="#000000"/>
-      </dia:attribute>
-      <dia:attribute name="fill_color">
-        <dia:color val="#ffffff"/>
-      </dia:attribute>
-      <dia:attribute name="text_color">
-        <dia:color val="#000000"/>
-      </dia:attribute>
-      <dia:attribute name="normal_font">
-        <dia:font family="monospace" style="0" name="Courier"/>
-      </dia:attribute>
-      <dia:attribute name="abstract_font">
-        <dia:font family="monospace" style="88" name="Courier-BoldOblique"/>
-      </dia:attribute>
-      <dia:attribute name="polymorphic_font">
-        <dia:font family="monospace" style="8" name="Courier-Oblique"/>
-      </dia:attribute>
-      <dia:attribute name="classname_font">
-        <dia:font family="sans" style="80" name="Helvetica-Bold"/>
-      </dia:attribute>
-      <dia:attribute name="abstract_classname_font">
-        <dia:font family="sans" style="88" name="Helvetica-BoldOblique"/>
-      </dia:attribute>
-      <dia:attribute name="comment_font">
-        <dia:font family="sans" style="8" name="Helvetica-Oblique"/>
-      </dia:attribute>
-      <dia:attribute name="normal_font_height">
-        <dia:real val="0.80000000000000004"/>
-      </dia:attribute>
-      <dia:attribute name="polymorphic_font_height">
-        <dia:real val="0.80000000000000004"/>
-      </dia:attribute>
-      <dia:attribute name="abstract_font_height">
-        <dia:real val="0.80000000000000004"/>
-      </dia:attribute>
-      <dia:attribute name="classname_font_height">
-        <dia:real val="1"/>
-      </dia:attribute>
-      <dia:attribute name="abstract_classname_font_height">
-        <dia:real val="1"/>
-      </dia:attribute>
-      <dia:attribute name="comment_font_height">
-        <dia:real val="1"/>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
       </dia:attribute>
-      <dia:attribute name="attributes">
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#entregador_id#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="comment">
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+          <dia:attribute name="multiplicity">
+            <dia:string>#*#</dia:string>
           </dia:attribute>
-          <dia:attribute name="abstract">
+          <dia:attribute name="arrow">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="class_scope">
-            <dia:boolean val="true"/>
-          </dia:attribute>
-        </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#alumno_id#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="comment">
-            <dia:string>##</dia:string>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="2"/>
-          </dia:attribute>
-          <dia:attribute name="abstract">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="class_scope">
-            <dia:boolean val="false"/>
+            <dia:enum val="0"/>
           </dia:attribute>
         </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#curso_id#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="comment">
+        <dia:composite>
+          <dia:attribute name="role">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="2"/>
-          </dia:attribute>
-          <dia:attribute name="abstract">
-            <dia:boolean val="false"/>
+          <dia:attribute name="multiplicity">
+            <dia:string>#1#</dia:string>
           </dia:attribute>
-          <dia:attribute name="class_scope">
+          <dia:attribute name="arrow">
             <dia:boolean val="false"/>
           </dia:attribute>
-        </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#condicional#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#BOOL#</dia:string>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
           </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
           </dia:attribute>
-          <dia:attribute name="comment">
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O31" connection="12"/>
+        <dia:connection handle="1" to="O32" connection="15"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="1" id="O4">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-1.22951,35.52"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-1.27951,34.82;2.05,40.6"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="-1.22951,35.52"/>
+        <dia:point val="0.385243,35.52"/>
+        <dia:point val="0.385243,39.7"/>
+        <dia:point val="2,39.7"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="3"/>
-          </dia:attribute>
-          <dia:attribute name="abstract">
-            <dia:boolean val="false"/>
+          <dia:attribute name="multiplicity">
+            <dia:string>#*#</dia:string>
           </dia:attribute>
-          <dia:attribute name="class_scope">
+          <dia:attribute name="arrow">
             <dia:boolean val="false"/>
           </dia:attribute>
-        </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#tutor_id#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
           </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
           </dia:attribute>
-          <dia:attribute name="comment">
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+          <dia:attribute name="multiplicity">
+            <dia:string>#1#</dia:string>
           </dia:attribute>
-          <dia:attribute name="abstract">
+          <dia:attribute name="arrow">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="class_scope">
-            <dia:boolean val="false"/>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
           </dia:attribute>
         </dia:composite>
       </dia:attribute>
-      <dia:attribute name="operations"/>
-      <dia:attribute name="template">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="templates"/>
-      <dia:childnode parent="O0"/>
+      <dia:connections>
+        <dia:connection handle="0" to="O31" connection="18"/>
+        <dia:connection handle="1" to="O20" connection="3"/>
+      </dia:connections>
     </dia:object>
-    <dia:object type="UML - Class" version="0" id="O5">
+    <dia:object type="UML - Association" version="1" id="O5">
       <dia:attribute name="obj_pos">
-        <dia:point val="8,5"/>
+        <dia:point val="5,-0.3"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="7.95,4.95;15.55,13.85"/>
-      </dia:attribute>
-      <dia:attribute name="elem_corner">
-        <dia:point val="8,5"/>
+        <dia:rectangle val="-5.405,-3.68;5.05,0.6"/>
       </dia:attribute>
-      <dia:attribute name="elem_width">
-        <dia:real val="7.5"/>
-      </dia:attribute>
-      <dia:attribute name="elem_height">
-        <dia:real val="8.7999999999999989"/>
+      <dia:attribute name="orth_points">
+        <dia:point val="5,-0.3"/>
+        <dia:point val="4,-0.3"/>
+        <dia:point val="4,-2.98"/>
+        <dia:point val="-5.355,-2.98"/>
+        <dia:point val="-5.355,-1.98"/>
       </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>#correccion#</dia:string>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
       </dia:attribute>
-      <dia:attribute name="stereotype">
-        <dia:string>##</dia:string>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="true"/>
       </dia:attribute>
-      <dia:attribute name="comment">
+      <dia:attribute name="name">
         <dia:string>##</dia:string>
       </dia:attribute>
-      <dia:attribute name="abstract">
-        <dia:boolean val="false"/>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
       </dia:attribute>
-      <dia:attribute name="suppress_attributes">
-        <dia:boolean val="false"/>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string># *#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string># 1#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
       </dia:attribute>
-      <dia:attribute name="suppress_operations">
-        <dia:boolean val="false"/>
+      <dia:connections>
+        <dia:connection handle="0" to="O1" connection="10"/>
+        <dia:connection handle="1" to="O28" connection="1"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="1" id="O6">
+      <dia:attribute name="obj_pos">
+        <dia:point val="8,10.1"/>
       </dia:attribute>
-      <dia:attribute name="visible_attributes">
-        <dia:boolean val="true"/>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-10.78,9.4;8.05,17.07"/>
       </dia:attribute>
-      <dia:attribute name="visible_operations">
-        <dia:boolean val="false"/>
+      <dia:attribute name="orth_points">
+        <dia:point val="8,10.1"/>
+        <dia:point val="-10.73,10.1"/>
+        <dia:point val="-10.73,16.27"/>
       </dia:attribute>
-      <dia:attribute name="visible_comments">
-        <dia:boolean val="false"/>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
       </dia:attribute>
-      <dia:attribute name="wrap_operations">
+      <dia:attribute name="autorouting">
         <dia:boolean val="true"/>
       </dia:attribute>
-      <dia:attribute name="wrap_after_char">
-        <dia:int val="40"/>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
       </dia:attribute>
-      <dia:attribute name="comment_line_length">
-        <dia:int val="40"/>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
       </dia:attribute>
-      <dia:attribute name="comment_tagging">
-        <dia:boolean val="false"/>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>#* #</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string># 1#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+        </dia:composite>
       </dia:attribute>
-      <dia:attribute name="line_color">
-        <dia:color val="#000000"/>
+      <dia:connections>
+        <dia:connection handle="0" to="O2" connection="16"/>
+        <dia:connection handle="1" to="O29" connection="1"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="1" id="O7">
+      <dia:attribute name="obj_pos">
+        <dia:point val="8,8.5"/>
       </dia:attribute>
-      <dia:attribute name="fill_color">
-        <dia:color val="#ffffff"/>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="3.65,7.8;8.05,23.32"/>
       </dia:attribute>
-      <dia:attribute name="text_color">
-        <dia:color val="#000000"/>
+      <dia:attribute name="orth_points">
+        <dia:point val="8,8.5"/>
+        <dia:point val="6.735,8.5"/>
+        <dia:point val="6.735,22.42"/>
+        <dia:point val="5.47,22.42"/>
       </dia:attribute>
-      <dia:attribute name="normal_font">
-        <dia:font family="monospace" style="0" name="Courier"/>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
       </dia:attribute>
-      <dia:attribute name="abstract_font">
-        <dia:font family="monospace" style="88" name="Courier-BoldOblique"/>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="true"/>
       </dia:attribute>
-      <dia:attribute name="polymorphic_font">
-        <dia:font family="monospace" style="8" name="Courier-Oblique"/>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
       </dia:attribute>
-      <dia:attribute name="classname_font">
-        <dia:font family="sans" style="80" name="Helvetica-Bold"/>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
       </dia:attribute>
-      <dia:attribute name="abstract_classname_font">
-        <dia:font family="sans" style="88" name="Helvetica-BoldOblique"/>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>#alumno/grupo#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>#* #</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string># 1#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
       </dia:attribute>
-      <dia:attribute name="comment_font">
-        <dia:font family="sans" style="8" name="Helvetica-Oblique"/>
+      <dia:connections>
+        <dia:connection handle="0" to="O2" connection="12"/>
+        <dia:connection handle="1" to="O30" connection="9"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="1" id="O8">
+      <dia:attribute name="obj_pos">
+        <dia:point val="15.5,9.3"/>
       </dia:attribute>
-      <dia:attribute name="normal_font_height">
-        <dia:real val="0.80000000000000004"/>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="12.45,-3;18.1,10.2"/>
       </dia:attribute>
-      <dia:attribute name="polymorphic_font_height">
-        <dia:real val="0.80000000000000004"/>
+      <dia:attribute name="orth_points">
+        <dia:point val="15.5,9.3"/>
+        <dia:point val="18,9.3"/>
+        <dia:point val="18,-2.3"/>
+        <dia:point val="12.5,-2.3"/>
       </dia:attribute>
-      <dia:attribute name="abstract_font_height">
-        <dia:real val="0.80000000000000004"/>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
       </dia:attribute>
-      <dia:attribute name="classname_font_height">
-        <dia:real val="1"/>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="false"/>
       </dia:attribute>
-      <dia:attribute name="abstract_classname_font_height">
-        <dia:real val="1"/>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
       </dia:attribute>
-      <dia:attribute name="comment_font_height">
-        <dia:real val="1"/>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
       </dia:attribute>
-      <dia:attribute name="attributes">
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#id#</dia:string>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
+          <dia:attribute name="multiplicity">
+            <dia:string># 0..1#</dia:string>
           </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="comment">
-            <dia:string>##</dia:string>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+            <dia:enum val="0"/>
           </dia:attribute>
-          <dia:attribute name="abstract">
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string># 1#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="class_scope">
-            <dia:boolean val="true"/>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
           </dia:attribute>
         </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#instancia_id#</dia:string>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O2" connection="15"/>
+        <dia:connection handle="1" to="O1" connection="4"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="1" id="O9">
+      <dia:attribute name="obj_pos">
+        <dia:point val="5,0.5"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="0.65,-0.2;5.05,21.32"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="5,0.5"/>
+        <dia:point val="1.195,0.5"/>
+        <dia:point val="1.195,20.52"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+      </dia:attribute>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>#alumno/grupo#</dia:string>
           </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
+          <dia:attribute name="multiplicity">
+            <dia:string># *#</dia:string>
           </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="comment">
-            <dia:string>##</dia:string>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="2"/>
+            <dia:enum val="3"/>
           </dia:attribute>
-          <dia:attribute name="abstract">
-            <dia:boolean val="false"/>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="class_scope">
+          <dia:attribute name="multiplicity">
+            <dia:string># 1#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
             <dia:boolean val="false"/>
           </dia:attribute>
-        </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#entregador_id#</dia:string>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
           </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
           </dia:attribute>
-          <dia:attribute name="value">
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O1" connection="12"/>
+        <dia:connection handle="1" to="O30" connection="1"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="1" id="O10">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-15.1296,-0.655"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-15.1796,-1.355;-9.88,2.42"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="-15.1296,-0.655"/>
+        <dia:point val="-12.5298,-0.655"/>
+        <dia:point val="-12.5298,1.52"/>
+        <dia:point val="-9.93,1.52"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="comment">
+          <dia:attribute name="multiplicity">
+            <dia:string>#1#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="2"/>
+          <dia:attribute name="multiplicity">
+            <dia:string>#*#</dia:string>
           </dia:attribute>
-          <dia:attribute name="abstract">
+          <dia:attribute name="arrow">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="class_scope">
-            <dia:boolean val="false"/>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
           </dia:attribute>
         </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#entrega_id#</dia:string>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O27" connection="18"/>
+        <dia:connection handle="1" to="O28" connection="12"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="1" id="O11">
+      <dia:attribute name="obj_pos">
+        <dia:point val="0.52,47.145"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-5.255,38.27;0.57,48.045"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="0.52,47.145"/>
+        <dia:point val="-5.205,47.145"/>
+        <dia:point val="-5.205,38.32"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+      </dia:attribute>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
+          <dia:attribute name="multiplicity">
+            <dia:string>#*#</dia:string>
           </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="comment">
-            <dia:string>##</dia:string>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="visibility">
             <dia:enum val="3"/>
           </dia:attribute>
-          <dia:attribute name="abstract">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="class_scope">
-            <dia:boolean val="false"/>
-          </dia:attribute>
         </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#corrector_id#</dia:string>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
+          <dia:attribute name="multiplicity">
+            <dia:string>#1#</dia:string>
           </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="comment">
-            <dia:string>##</dia:string>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="visibility">
             <dia:enum val="3"/>
           </dia:attribute>
-          <dia:attribute name="abstract">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="class_scope">
-            <dia:boolean val="false"/>
-          </dia:attribute>
         </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#asignado#</dia:string>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O33" connection="12"/>
+        <dia:connection handle="1" to="O31" connection="6"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="1" id="O12">
+      <dia:attribute name="obj_pos">
+        <dia:point val="6.22,47.145"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="6.17,37.75;12.3,48.045"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="6.22,47.145"/>
+        <dia:point val="11.75,47.145"/>
+        <dia:point val="11.75,37.8"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+      </dia:attribute>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#DATE#</dia:string>
+          <dia:attribute name="multiplicity">
+            <dia:string>#*#</dia:string>
           </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="comment">
-            <dia:string>#Fecha en que se asigno la entrega al corrector#</dia:string>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="visibility">
             <dia:enum val="3"/>
           </dia:attribute>
-          <dia:attribute name="abstract">
-            <dia:boolean val="false"/>
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="class_scope">
+          <dia:attribute name="multiplicity">
+            <dia:string>#1#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
             <dia:boolean val="false"/>
           </dia:attribute>
-        </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#corregido#</dia:string>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
           </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#DATE#</dia:string>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
           </dia:attribute>
-          <dia:attribute name="value">
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O33" connection="13"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="1" id="O13">
+      <dia:attribute name="obj_pos">
+        <dia:point val="8,7.7"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-0.83,1.62;8.05,8.6"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="8,7.7"/>
+        <dia:point val="3,7.7"/>
+        <dia:point val="3,2.32"/>
+        <dia:point val="-0.78,2.32"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="comment">
-            <dia:string>#Fecha en que se terminó de corregir (se puso la nota)#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+          <dia:attribute name="multiplicity">
+            <dia:string>#*#</dia:string>
           </dia:attribute>
-          <dia:attribute name="abstract">
+          <dia:attribute name="arrow">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="class_scope">
-            <dia:boolean val="false"/>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
           </dia:attribute>
         </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#nota#</dia:string>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#FLOAT#</dia:string>
+          <dia:attribute name="multiplicity">
+            <dia:string>#1#</dia:string>
           </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="comment">
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O2" connection="10"/>
+        <dia:connection handle="1" to="O28" connection="15"/>
+      </dia:connections>
+      <dia:childnode parent="O0"/>
+    </dia:object>
+    <dia:object type="UML - Association" version="1" id="O14">
+      <dia:attribute name="obj_pos">
+        <dia:point val="8.07,37.245"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-16.405,36.545;8.12,42.42"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="8.07,37.245"/>
+        <dia:point val="7.07,37.245"/>
+        <dia:point val="7.07,41.82"/>
+        <dia:point val="-16.355,41.82"/>
+        <dia:point val="-16.355,40.82"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+      </dia:attribute>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="3"/>
-          </dia:attribute>
-          <dia:attribute name="abstract">
-            <dia:boolean val="false"/>
+          <dia:attribute name="multiplicity">
+            <dia:string>#*#</dia:string>
           </dia:attribute>
-          <dia:attribute name="class_scope">
+          <dia:attribute name="arrow">
             <dia:boolean val="false"/>
           </dia:attribute>
-        </dia:composite>
-        <dia:composite type="umlattribute">
-          <dia:attribute name="name">
-            <dia:string>#observaciones#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="type">
-            <dia:string>#TEXT#</dia:string>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
           </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
           </dia:attribute>
-          <dia:attribute name="comment">
+        </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+          <dia:attribute name="multiplicity">
+            <dia:string>#1#</dia:string>
           </dia:attribute>
-          <dia:attribute name="abstract">
+          <dia:attribute name="arrow">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="class_scope">
-            <dia:boolean val="false"/>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
           </dia:attribute>
         </dia:composite>
       </dia:attribute>
-      <dia:attribute name="operations"/>
-      <dia:attribute name="template">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="templates"/>
+      <dia:connections>
+        <dia:connection handle="0" to="O34" connection="14"/>
+        <dia:connection handle="1" to="O32" connection="6"/>
+      </dia:connections>
       <dia:childnode parent="O0"/>
     </dia:object>
-    <dia:object type="UML - Association" version="1" id="O6">
+    <dia:object type="UML - Association" version="1" id="O15">
       <dia:attribute name="obj_pos">
-        <dia:point val="-9,36.5"/>
+        <dia:point val="8.07,34.845"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="-14.3,35.8;-8.95,40.6"/>
+        <dia:rectangle val="-1.33,32.72;8.12,35.745"/>
       </dia:attribute>
       <dia:attribute name="orth_points">
-        <dia:point val="-9,36.5"/>
-        <dia:point val="-11.625,36.5"/>
-        <dia:point val="-11.625,39.7"/>
-        <dia:point val="-14.25,39.7"/>
+        <dia:point val="8.07,34.845"/>
+        <dia:point val="3.395,34.845"/>
+        <dia:point val="3.395,33.42"/>
+        <dia:point val="-1.28,33.42"/>
       </dia:attribute>
       <dia:attribute name="orth_orient">
         <dia:enum val="0"/>
@@ -1322,7 +1510,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="multiplicity">
-            <dia:string>#*#</dia:string>
+            <dia:string>#1#</dia:string>
           </dia:attribute>
           <dia:attribute name="arrow">
             <dia:boolean val="false"/>
@@ -1331,7 +1519,7 @@
             <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="0"/>
+            <dia:enum val="3"/>
           </dia:attribute>
         </dia:composite>
         <dia:composite>
@@ -1339,7 +1527,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="multiplicity">
-            <dia:string>#1#</dia:string>
+            <dia:string>#0..1#</dia:string>
           </dia:attribute>
           <dia:attribute name="arrow">
             <dia:boolean val="false"/>
@@ -1348,236 +1536,371 @@
             <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O34" connection="8"/>
+        <dia:connection handle="1" to="O31" connection="4"/>
+      </dia:connections>
+      <dia:childnode parent="O0"/>
+    </dia:object>
+    <dia:object type="UML - Generalization" version="1" id="O16">
+      <dia:attribute name="obj_pos">
+        <dia:point val="1.195,25.32"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-5.35,25.27;2.045,32.9997"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="1.195,25.32"/>
+        <dia:point val="1.195,29.1348"/>
+        <dia:point val="-5.3,29.1348"/>
+        <dia:point val="-5.3,32.9497"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+      </dia:attribute>
+      <dia:attribute name="orth_autoroute">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="text_colour">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="line_colour">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="stereotype">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O30" connection="6"/>
+      </dia:connections>
+      <dia:childnode parent="O0"/>
+    </dia:object>
+    <dia:object type="UML - Generalization" version="1" id="O17">
+      <dia:attribute name="obj_pos">
+        <dia:point val="1.195,25.32"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="0.345,25.27;11.87,32.995"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="1.195,25.32"/>
+        <dia:point val="1.195,29.1325"/>
+        <dia:point val="11.82,29.1325"/>
+        <dia:point val="11.82,32.945"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+      </dia:attribute>
+      <dia:attribute name="orth_autoroute">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="text_colour">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="line_colour">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="stereotype">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O30" connection="6"/>
+        <dia:connection handle="1" to="O34" connection="1"/>
+      </dia:connections>
+      <dia:childnode parent="O0"/>
+    </dia:object>
+    <dia:object type="UML - Note" version="0" id="O18">
+      <dia:attribute name="obj_pos">
+        <dia:point val="12,48"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="11.95,47.95;17.85,52.15"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="12,48"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="5.8000000000000007"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="4.1000000000000005"/>
+      </dia:attribute>
+      <dia:attribute name="line_colour">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="fill_colour">
+        <dia:color val="#ffffff"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#_ es PK física
+# es PK lógica
+- es para
+  polimorfismo#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="monospace" style="0" name="Courier"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="0.80000000000000004"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="12.35,49.2"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
             <dia:enum val="0"/>
           </dia:attribute>
         </dia:composite>
       </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O4" connection="12"/>
-        <dia:connection handle="1" to="O1" connection="4"/>
-      </dia:connections>
+      <dia:childnode parent="O0"/>
+    </dia:object>
+    <dia:object type="UML - Class" version="0" id="O19">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-17,7"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-17.05,6.95;-13.15,8.45"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-17,7"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="3.7999999999999998"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="1.3999999999999999"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#docente#</dia:string>
+      </dia:attribute>
+      <dia:attribute name="stereotype">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="comment">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="abstract">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="suppress_attributes">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="suppress_operations">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="visible_attributes">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="visible_operations">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="visible_comments">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="wrap_operations">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="wrap_after_char">
+        <dia:int val="40"/>
+      </dia:attribute>
+      <dia:attribute name="comment_line_length">
+        <dia:int val="40"/>
+      </dia:attribute>
+      <dia:attribute name="comment_tagging">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="line_color">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="fill_color">
+        <dia:color val="#ffffff"/>
+      </dia:attribute>
+      <dia:attribute name="text_color">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="normal_font">
+        <dia:font family="monospace" style="0" name="Courier"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_font">
+        <dia:font family="monospace" style="88" name="Courier-BoldOblique"/>
+      </dia:attribute>
+      <dia:attribute name="polymorphic_font">
+        <dia:font family="monospace" style="8" name="Courier-Oblique"/>
+      </dia:attribute>
+      <dia:attribute name="classname_font">
+        <dia:font family="sans" style="80" name="Helvetica-Bold"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_classname_font">
+        <dia:font family="sans" style="88" name="Helvetica-BoldOblique"/>
+      </dia:attribute>
+      <dia:attribute name="comment_font">
+        <dia:font family="sans" style="8" name="Helvetica-Oblique"/>
+      </dia:attribute>
+      <dia:attribute name="normal_font_height">
+        <dia:real val="0.80000000000000004"/>
+      </dia:attribute>
+      <dia:attribute name="polymorphic_font_height">
+        <dia:real val="0.80000000000000004"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_font_height">
+        <dia:real val="0.80000000000000004"/>
+      </dia:attribute>
+      <dia:attribute name="classname_font_height">
+        <dia:real val="1"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_classname_font_height">
+        <dia:real val="1"/>
+      </dia:attribute>
+      <dia:attribute name="comment_font_height">
+        <dia:real val="1"/>
+      </dia:attribute>
+      <dia:attribute name="attributes"/>
+      <dia:attribute name="operations"/>
+      <dia:attribute name="template">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="templates"/>
     </dia:object>
-    <dia:object type="UML - Association" version="1" id="O7">
+    <dia:object type="UML - Class" version="0" id="O20">
       <dia:attribute name="obj_pos">
-        <dia:point val="-1.6,35.7"/>
+        <dia:point val="2,39"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="-1.65,35;2.05,40.6"/>
+        <dia:rectangle val="1.95,38.95;5.55,40.45"/>
       </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="-1.6,35.7"/>
-        <dia:point val="0.2,35.7"/>
-        <dia:point val="0.2,39.7"/>
-        <dia:point val="2,39.7"/>
+      <dia:attribute name="elem_corner">
+        <dia:point val="2,39"/>
       </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-        <dia:enum val="0"/>
+      <dia:attribute name="elem_width">
+        <dia:real val="3.5"/>
       </dia:attribute>
-      <dia:attribute name="autorouting">
-        <dia:boolean val="true"/>
+      <dia:attribute name="elem_height">
+        <dia:real val="1.3999999999999999"/>
       </dia:attribute>
       <dia:attribute name="name">
+        <dia:string>#alumno#</dia:string>
+      </dia:attribute>
+      <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
       </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
+      <dia:attribute name="comment">
+        <dia:string>##</dia:string>
       </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#*#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
-          </dia:attribute>
-        </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#1#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
-          </dia:attribute>
-        </dia:composite>
+      <dia:attribute name="abstract">
+        <dia:boolean val="false"/>
       </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O4" connection="11"/>
-        <dia:connection handle="1" to="O27" connection="3"/>
-      </dia:connections>
-    </dia:object>
-    <dia:object type="UML - Association" version="1" id="O8">
-      <dia:attribute name="obj_pos">
-        <dia:point val="5,-0.3"/>
+      <dia:attribute name="suppress_attributes">
+        <dia:boolean val="false"/>
       </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="-5.475,-3.7;5.05,0.6"/>
+      <dia:attribute name="suppress_operations">
+        <dia:boolean val="false"/>
       </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="5,-0.3"/>
-        <dia:point val="4,-0.3"/>
-        <dia:point val="4,-3"/>
-        <dia:point val="-5.425,-3"/>
-        <dia:point val="-5.425,-2"/>
+      <dia:attribute name="visible_attributes">
+        <dia:boolean val="false"/>
       </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
+      <dia:attribute name="visible_operations">
+        <dia:boolean val="false"/>
       </dia:attribute>
-      <dia:attribute name="autorouting">
+      <dia:attribute name="visible_comments">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="wrap_operations">
         <dia:boolean val="true"/>
       </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
+      <dia:attribute name="wrap_after_char">
+        <dia:int val="40"/>
       </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
+      <dia:attribute name="comment_line_length">
+        <dia:int val="40"/>
       </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string># *#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
-          </dia:attribute>
-        </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string># 1#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
-          </dia:attribute>
-        </dia:composite>
+      <dia:attribute name="comment_tagging">
+        <dia:boolean val="false"/>
       </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O3" connection="10"/>
-        <dia:connection handle="1" to="O2" connection="1"/>
-      </dia:connections>
-    </dia:object>
-    <dia:object type="UML - Association" version="1" id="O9">
-      <dia:attribute name="obj_pos">
-        <dia:point val="8,10.1"/>
+      <dia:attribute name="line_color">
+        <dia:color val="#000000"/>
       </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="-10.2,9.4;8.05,17.8"/>
+      <dia:attribute name="fill_color">
+        <dia:color val="#ffffff"/>
       </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="8,10.1"/>
-        <dia:point val="-10.15,10.1"/>
-        <dia:point val="-10.15,17"/>
+      <dia:attribute name="text_color">
+        <dia:color val="#000000"/>
       </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
+      <dia:attribute name="normal_font">
+        <dia:font family="monospace" style="0" name="Courier"/>
       </dia:attribute>
-      <dia:attribute name="autorouting">
-        <dia:boolean val="true"/>
+      <dia:attribute name="abstract_font">
+        <dia:font family="monospace" style="88" name="Courier-BoldOblique"/>
       </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
+      <dia:attribute name="polymorphic_font">
+        <dia:font family="monospace" style="8" name="Courier-Oblique"/>
       </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
+      <dia:attribute name="classname_font">
+        <dia:font family="sans" style="80" name="Helvetica-Bold"/>
       </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#* #</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="3"/>
-          </dia:attribute>
-        </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string># 1#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="3"/>
-          </dia:attribute>
-        </dia:composite>
+      <dia:attribute name="abstract_classname_font">
+        <dia:font family="sans" style="88" name="Helvetica-BoldOblique"/>
       </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O5" connection="16"/>
-        <dia:connection handle="1" to="O28" connection="1"/>
-      </dia:connections>
+      <dia:attribute name="comment_font">
+        <dia:font family="sans" style="8" name="Helvetica-Oblique"/>
+      </dia:attribute>
+      <dia:attribute name="normal_font_height">
+        <dia:real val="0.80000000000000004"/>
+      </dia:attribute>
+      <dia:attribute name="polymorphic_font_height">
+        <dia:real val="0.80000000000000004"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_font_height">
+        <dia:real val="0.80000000000000004"/>
+      </dia:attribute>
+      <dia:attribute name="classname_font_height">
+        <dia:real val="1"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_classname_font_height">
+        <dia:real val="1"/>
+      </dia:attribute>
+      <dia:attribute name="comment_font_height">
+        <dia:real val="1"/>
+      </dia:attribute>
+      <dia:attribute name="attributes"/>
+      <dia:attribute name="operations"/>
+      <dia:attribute name="template">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="templates"/>
     </dia:object>
-    <dia:object type="UML - Association" version="1" id="O10">
+    <dia:object type="UML - Association" version="1" id="O21">
       <dia:attribute name="obj_pos">
-        <dia:point val="8,8.5"/>
+        <dia:point val="-14.58,19.77"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="3.6,7.8;8.05,24.1"/>
+        <dia:rectangle val="-16.405,19.07;-14.53,36.02"/>
       </dia:attribute>
       <dia:attribute name="orth_points">
-        <dia:point val="8,8.5"/>
-        <dia:point val="6.77523,8.5"/>
-        <dia:point val="6.77523,23.2"/>
-        <dia:point val="5.55046,23.2"/>
+        <dia:point val="-14.58,19.77"/>
+        <dia:point val="-16.355,19.77"/>
+        <dia:point val="-16.355,35.22"/>
       </dia:attribute>
       <dia:attribute name="orth_orient">
         <dia:enum val="0"/>
         <dia:enum val="1"/>
-        <dia:enum val="0"/>
       </dia:attribute>
       <dia:attribute name="autorouting">
         <dia:boolean val="true"/>
@@ -1591,10 +1914,10 @@
       <dia:attribute name="ends">
         <dia:composite>
           <dia:attribute name="role">
-            <dia:string>#alumno/grupo#</dia:string>
+            <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="multiplicity">
-            <dia:string>#* #</dia:string>
+            <dia:string>#*#</dia:string>
           </dia:attribute>
           <dia:attribute name="arrow">
             <dia:boolean val="false"/>
@@ -1603,7 +1926,7 @@
             <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+            <dia:enum val="0"/>
           </dia:attribute>
         </dia:composite>
         <dia:composite>
@@ -1611,7 +1934,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="multiplicity">
-            <dia:string># 1#</dia:string>
+            <dia:string>#1#</dia:string>
           </dia:attribute>
           <dia:attribute name="arrow">
             <dia:boolean val="false"/>
@@ -1625,30 +1948,35 @@
         </dia:composite>
       </dia:attribute>
       <dia:connections>
-        <dia:connection handle="0" to="O5" connection="12"/>
-        <dia:connection handle="1" to="O22" connection="20"/>
+        <dia:connection handle="0" to="O29" connection="12"/>
+        <dia:connection handle="1" to="O32" connection="1"/>
       </dia:connections>
+      <dia:childnode parent="O0"/>
     </dia:object>
-    <dia:object type="UML - Association" version="1" id="O11">
+    <dia:object type="UML - Association" version="1" id="O22">
       <dia:attribute name="obj_pos">
-        <dia:point val="15.5,9.3"/>
+        <dia:point val="-14.58,18.17"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="12.45,-3;18.1,10.2"/>
+        <dia:rectangle val="-15.63,7;-12.15,19.07"/>
       </dia:attribute>
       <dia:attribute name="orth_points">
-        <dia:point val="15.5,9.3"/>
-        <dia:point val="18,9.3"/>
-        <dia:point val="18,-2.3"/>
-        <dia:point val="12.5,-2.3"/>
+        <dia:point val="-14.58,18.17"/>
+        <dia:point val="-15.58,18.17"/>
+        <dia:point val="-15.58,12.935"/>
+        <dia:point val="-12.2,12.935"/>
+        <dia:point val="-12.2,7.7"/>
+        <dia:point val="-13.2,7.7"/>
       </dia:attribute>
       <dia:attribute name="orth_orient">
         <dia:enum val="0"/>
         <dia:enum val="1"/>
         <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
       </dia:attribute>
       <dia:attribute name="autorouting">
-        <dia:boolean val="false"/>
+        <dia:boolean val="true"/>
       </dia:attribute>
       <dia:attribute name="name">
         <dia:string>##</dia:string>
@@ -1662,7 +1990,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="multiplicity">
-            <dia:string># 0..1#</dia:string>
+            <dia:string>#*#</dia:string>
           </dia:attribute>
           <dia:attribute name="arrow">
             <dia:boolean val="false"/>
@@ -1679,7 +2007,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="multiplicity">
-            <dia:string># 1#</dia:string>
+            <dia:string>#1#</dia:string>
           </dia:attribute>
           <dia:attribute name="arrow">
             <dia:boolean val="false"/>
@@ -1693,21 +2021,22 @@
         </dia:composite>
       </dia:attribute>
       <dia:connections>
-        <dia:connection handle="0" to="O5" connection="15"/>
-        <dia:connection handle="1" to="O3" connection="4"/>
+        <dia:connection handle="0" to="O29" connection="8"/>
+        <dia:connection handle="1" to="O19" connection="4"/>
       </dia:connections>
+      <dia:childnode parent="O0"/>
     </dia:object>
-    <dia:object type="UML - Association" version="1" id="O12">
+    <dia:object type="UML - Association" version="1" id="O23">
       <dia:attribute name="obj_pos">
-        <dia:point val="5,0.5"/>
+        <dia:point val="-9.13,34.62"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="0.6,-0.2;5.05,20.8"/>
+        <dia:rectangle val="-10.78,22.82;-9.08,35.52"/>
       </dia:attribute>
       <dia:attribute name="orth_points">
-        <dia:point val="5,0.5"/>
-        <dia:point val="1.75,0.5"/>
-        <dia:point val="1.75,20"/>
+        <dia:point val="-9.13,34.62"/>
+        <dia:point val="-10.73,34.62"/>
+        <dia:point val="-10.73,22.87"/>
       </dia:attribute>
       <dia:attribute name="orth_orient">
         <dia:enum val="0"/>
@@ -1725,10 +2054,10 @@
       <dia:attribute name="ends">
         <dia:composite>
           <dia:attribute name="role">
-            <dia:string>#alumno/grupo#</dia:string>
+            <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="multiplicity">
-            <dia:string># *#</dia:string>
+            <dia:string>#*#</dia:string>
           </dia:attribute>
           <dia:attribute name="arrow">
             <dia:boolean val="false"/>
@@ -1737,7 +2066,7 @@
             <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+            <dia:enum val="0"/>
           </dia:attribute>
         </dia:composite>
         <dia:composite>
@@ -1745,7 +2074,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="multiplicity">
-            <dia:string># 1#</dia:string>
+            <dia:string>#0..1#</dia:string>
           </dia:attribute>
           <dia:attribute name="arrow">
             <dia:boolean val="false"/>
@@ -1759,28 +2088,29 @@
         </dia:composite>
       </dia:attribute>
       <dia:connections>
-        <dia:connection handle="0" to="O3" connection="12"/>
-        <dia:connection handle="1" to="O22" connection="1"/>
+        <dia:connection handle="0" to="O31" connection="8"/>
+        <dia:connection handle="1" to="O29" connection="6"/>
       </dia:connections>
+      <dia:childnode parent="O0"/>
     </dia:object>
-    <dia:object type="UML - Class" version="0" id="O13">
+    <dia:object type="UML - Class" version="0" id="O24">
       <dia:attribute name="obj_pos">
-        <dia:point val="-17,-3"/>
+        <dia:point val="11,15"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="-17.05,-3.05;-12.9,-1.55"/>
+        <dia:rectangle val="10.95,14.95;17.15,19.85"/>
       </dia:attribute>
       <dia:attribute name="elem_corner">
-        <dia:point val="-17,-3"/>
+        <dia:point val="11,15"/>
       </dia:attribute>
       <dia:attribute name="elem_width">
-        <dia:real val="4.0499999999999998"/>
+        <dia:real val="6.0999999999999996"/>
       </dia:attribute>
       <dia:attribute name="elem_height">
-        <dia:real val="1.3999999999999999"/>
+        <dia:real val="4.8000000000000007"/>
       </dia:attribute>
       <dia:attribute name="name">
-        <dia:string>#ejercicio#</dia:string>
+        <dia:string>#tutor#</dia:string>
       </dia:attribute>
       <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
@@ -1798,7 +2128,7 @@
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="visible_attributes">
-        <dia:boolean val="false"/>
+        <dia:boolean val="true"/>
       </dia:attribute>
       <dia:attribute name="visible_operations">
         <dia:boolean val="false"/>
@@ -1863,26 +2193,118 @@
       <dia:attribute name="comment_font_height">
         <dia:real val="1"/>
       </dia:attribute>
-      <dia:attribute name="attributes"/>
+      <dia:attribute name="attributes">
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#grupo_id#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#INT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="2"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#docente_id#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#INT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="2"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#alta#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#DATE#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#baja#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#DATE#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
       <dia:attribute name="operations"/>
       <dia:attribute name="template">
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="templates"/>
-      <dia:childnode parent="O0"/>
     </dia:object>
-    <dia:object type="UML - Association" version="1" id="O14">
+    <dia:object type="UML - Association" version="1" id="O25">
       <dia:attribute name="obj_pos">
-        <dia:point val="-12.95,-2.3"/>
+        <dia:point val="11,17.7"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="-13,-3;-9.95,1.6"/>
+        <dia:rectangle val="-6.93,17;11.05,19.07"/>
       </dia:attribute>
       <dia:attribute name="orth_points">
-        <dia:point val="-12.95,-2.3"/>
-        <dia:point val="-11.475,-2.3"/>
-        <dia:point val="-11.475,0.7"/>
-        <dia:point val="-10,0.7"/>
+        <dia:point val="11,17.7"/>
+        <dia:point val="2.06,17.7"/>
+        <dia:point val="2.06,18.17"/>
+        <dia:point val="-6.88,18.17"/>
       </dia:attribute>
       <dia:attribute name="orth_orient">
         <dia:enum val="0"/>
@@ -1899,6 +2321,23 @@
         <dia:enum val="0"/>
       </dia:attribute>
       <dia:attribute name="ends">
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>#*#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
         <dia:composite>
           <dia:attribute name="role">
             <dia:string>##</dia:string>
@@ -1916,6 +2355,41 @@
             <dia:enum val="0"/>
           </dia:attribute>
         </dia:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O24" connection="10"/>
+        <dia:connection handle="1" to="O29" connection="9"/>
+      </dia:connections>
+      <dia:childnode parent="O0"/>
+    </dia:object>
+    <dia:object type="UML - Association" version="1" id="O26">
+      <dia:attribute name="obj_pos">
+        <dia:point val="17.1,16.9"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="15.5705,16.2;18.2,36.245"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="17.1,16.9"/>
+        <dia:point val="18.1,16.9"/>
+        <dia:point val="18.1,35.345"/>
+        <dia:point val="15.6205,35.345"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="autorouting">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>##</dia:string>
+      </dia:attribute>
+      <dia:attribute name="direction">
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="ends">
         <dia:composite>
           <dia:attribute name="role">
             <dia:string>##</dia:string>
@@ -1933,30 +2407,47 @@
             <dia:enum val="0"/>
           </dia:attribute>
         </dia:composite>
+        <dia:composite>
+          <dia:attribute name="role">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="multiplicity">
+            <dia:string>#1#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="arrow">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="aggregate">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
       </dia:attribute>
       <dia:connections>
-        <dia:connection handle="0" to="O13" connection="4"/>
-        <dia:connection handle="1" to="O2" connection="10"/>
+        <dia:connection handle="0" to="O24" connection="9"/>
+        <dia:connection handle="1" to="O34" connection="16"/>
       </dia:connections>
     </dia:object>
-    <dia:object type="UML - Class" version="0" id="O15">
+    <dia:object type="UML - Class" version="0" id="O27">
       <dia:attribute name="obj_pos">
-        <dia:point val="8,33"/>
+        <dia:point val="-21.98,-3.455"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="7.95,32.95;15.55,37.85"/>
+        <dia:rectangle val="-22.03,-3.505;-15.13,2.195"/>
       </dia:attribute>
       <dia:attribute name="elem_corner">
-        <dia:point val="8,33"/>
+        <dia:point val="-21.98,-3.455"/>
       </dia:attribute>
       <dia:attribute name="elem_width">
-        <dia:real val="7.5"/>
+        <dia:real val="6.7999999999999998"/>
       </dia:attribute>
       <dia:attribute name="elem_height">
-        <dia:real val="4.8000000000000007"/>
+        <dia:real val="5.5999999999999996"/>
       </dia:attribute>
       <dia:attribute name="name">
-        <dia:string>#grupo#</dia:string>
+        <dia:string>#ejercicio#</dia:string>
       </dia:attribute>
       <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
@@ -1983,7 +2474,7 @@
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="wrap_operations">
-        <dia:boolean val="true"/>
+        <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="wrap_after_char">
         <dia:int val="40"/>
@@ -2037,15 +2528,15 @@
         <dia:real val="1"/>
       </dia:attribute>
       <dia:attribute name="comment_font_height">
-        <dia:real val="1"/>
+        <dia:real val="0.69999999999999996"/>
       </dia:attribute>
       <dia:attribute name="attributes">
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#entregador_id#</dia:string>
+            <dia:string>#id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
+            <dia:string>#INTEGER#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -2054,7 +2545,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+            <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -2088,10 +2579,10 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#nombre#</dia:string>
+            <dia:string>#numero#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#VARCHAR#</dia:string>
+            <dia:string>#INT#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -2111,7 +2602,7 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#responsable_id#</dia:string>
+            <dia:string>#enunciado_id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
             <dia:string>#INT#</dia:string>
@@ -2132,32 +2623,54 @@
             <dia:boolean val="false"/>
           </dia:attribute>
         </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#grupal#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#TINYINT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
       </dia:attribute>
       <dia:attribute name="operations"/>
       <dia:attribute name="template">
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="templates"/>
-      <dia:childnode parent="O0"/>
     </dia:object>
-    <dia:object type="UML - Class" version="0" id="O16">
+    <dia:object type="UML - Class" version="0" id="O28">
       <dia:attribute name="obj_pos">
-        <dia:point val="1,44"/>
+        <dia:point val="-9.93,-1.98"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="0.95,43.95;6.8,49.65"/>
+        <dia:rectangle val="-9.98,-2.03;-0.73,6.87"/>
       </dia:attribute>
       <dia:attribute name="elem_corner">
-        <dia:point val="1,44"/>
+        <dia:point val="-9.93,-1.98"/>
       </dia:attribute>
       <dia:attribute name="elem_width">
-        <dia:real val="5.75"/>
+        <dia:real val="9.1500000000000004"/>
       </dia:attribute>
       <dia:attribute name="elem_height">
-        <dia:real val="5.5999999999999996"/>
+        <dia:real val="8.7999999999999989"/>
       </dia:attribute>
       <dia:attribute name="name">
-        <dia:string>#miembro#</dia:string>
+        <dia:string>#instancia_de_entrega#</dia:string>
       </dia:attribute>
       <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
@@ -2184,7 +2697,7 @@
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="wrap_operations">
-        <dia:boolean val="true"/>
+        <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="wrap_after_char">
         <dia:int val="40"/>
@@ -2238,15 +2751,15 @@
         <dia:real val="1"/>
       </dia:attribute>
       <dia:attribute name="comment_font_height">
-        <dia:real val="1"/>
+        <dia:real val="0.69999999999999996"/>
       </dia:attribute>
       <dia:attribute name="attributes">
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#grupo_id#</dia:string>
+            <dia:string>#id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
+            <dia:string>#INTEGER#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -2255,7 +2768,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="2"/>
+            <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -2266,7 +2779,7 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#alumno_id#</dia:string>
+            <dia:string>#ejercicio_id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
             <dia:string>#INT#</dia:string>
@@ -2284,15 +2797,15 @@
             <dia:boolean val="false"/>
           </dia:attribute>
           <dia:attribute name="class_scope">
-            <dia:boolean val="true"/>
+            <dia:boolean val="false"/>
           </dia:attribute>
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#nota#</dia:string>
+            <dia:string>#numero#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#FLOAT#</dia:string>
+            <dia:string>#INT#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -2301,7 +2814,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+            <dia:enum val="2"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -2312,10 +2825,10 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#alta#</dia:string>
+            <dia:string>#inicio#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#DATE#</dia:string>
+            <dia:string>#TIME#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -2335,10 +2848,10 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#baja#</dia:string>
+            <dia:string>#fin#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#DATE#</dia:string>
+            <dia:string>#TIME#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -2356,373 +2869,123 @@
             <dia:boolean val="false"/>
           </dia:attribute>
         </dia:composite>
-      </dia:attribute>
-      <dia:attribute name="operations"/>
-      <dia:attribute name="template">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="templates"/>
-      <dia:childnode parent="O0"/>
-    </dia:object>
-    <dia:object type="UML - Association" version="1" id="O17">
-      <dia:attribute name="obj_pos">
-        <dia:point val="1,46.7"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="-5.35,38.55;1.05,47.6"/>
-      </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="1,46.7"/>
-        <dia:point val="-5.3,46.7"/>
-        <dia:point val="-5.3,38.6"/>
-      </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-      </dia:attribute>
-      <dia:attribute name="autorouting">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#*#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#inicio_proceso#</dia:string>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+          <dia:attribute name="type">
+            <dia:string>#TIME#</dia:string>
           </dia:attribute>
-        </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
+          <dia:attribute name="value">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#1#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="3"/>
-          </dia:attribute>
-        </dia:composite>
-      </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O16" connection="10"/>
-        <dia:connection handle="1" to="O4" connection="6"/>
-      </dia:connections>
-    </dia:object>
-    <dia:object type="UML - Association" version="1" id="O18">
-      <dia:attribute name="obj_pos">
-        <dia:point val="6.75,45.9"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="6.7,37.75;12.3,46.8"/>
-      </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="6.75,45.9"/>
-        <dia:point val="11.75,45.9"/>
-        <dia:point val="11.75,37.8"/>
-      </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-      </dia:attribute>
-      <dia:attribute name="autorouting">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
+          <dia:attribute name="comment">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#*#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
           <dia:attribute name="visibility">
             <dia:enum val="3"/>
           </dia:attribute>
-        </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#1#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
-          </dia:attribute>
-        </dia:composite>
-      </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O16" connection="9"/>
-        <dia:connection handle="1" to="O15" connection="6"/>
-      </dia:connections>
-    </dia:object>
-    <dia:object type="UML - Association" version="1" id="O19">
-      <dia:attribute name="obj_pos">
-        <dia:point val="8,7.7"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="-0.850095,1.3;8.05,8.6"/>
-      </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="8,7.7"/>
-        <dia:point val="3,7.7"/>
-        <dia:point val="3,2"/>
-        <dia:point val="-0.800095,2"/>
-      </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="autorouting">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#*#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
+          <dia:attribute name="abstract">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
-          </dia:attribute>
-        </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#1#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
+          <dia:attribute name="class_scope">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
-          </dia:attribute>
         </dia:composite>
-      </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O5" connection="10"/>
-        <dia:connection handle="1" to="O2" connection="24"/>
-      </dia:connections>
-      <dia:childnode parent="O0"/>
-    </dia:object>
-    <dia:object type="UML - Association" version="1" id="O20">
-      <dia:attribute name="obj_pos">
-        <dia:point val="8,35.7"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="-15.675,35;8.05,42"/>
-      </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="8,35.7"/>
-        <dia:point val="7,35.7"/>
-        <dia:point val="7,41.4"/>
-        <dia:point val="-15.625,41.4"/>
-        <dia:point val="-15.625,40.4"/>
-      </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-      </dia:attribute>
-      <dia:attribute name="autorouting">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#*#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#fin_proceso#</dia:string>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
+          <dia:attribute name="type">
+            <dia:string>#TIME#</dia:string>
           </dia:attribute>
-        </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
+          <dia:attribute name="value">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#1#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="0"/>
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
           </dia:attribute>
         </dia:composite>
-      </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O15" connection="10"/>
-        <dia:connection handle="1" to="O1" connection="6"/>
-      </dia:connections>
-      <dia:childnode parent="O0"/>
-    </dia:object>
-    <dia:object type="UML - Association" version="1" id="O21">
-      <dia:attribute name="obj_pos">
-        <dia:point val="8,37.3"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="-1.65,33;8.05,38.2"/>
-      </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="8,37.3"/>
-        <dia:point val="3.2,37.3"/>
-        <dia:point val="3.2,33.7"/>
-        <dia:point val="-1.6,33.7"/>
-      </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="autorouting">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#observaciones#</dia:string>
           </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#1#</dia:string>
+          <dia:attribute name="type">
+            <dia:string>#TEXT#</dia:string>
           </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
             <dia:enum val="3"/>
           </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
         </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#activo#</dia:string>
           </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#0..1#</dia:string>
+          <dia:attribute name="type">
+            <dia:string>#TINYINT#</dia:string>
           </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
             <dia:enum val="3"/>
           </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
         </dia:composite>
       </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O15" connection="14"/>
-        <dia:connection handle="1" to="O4" connection="4"/>
-      </dia:connections>
-      <dia:childnode parent="O0"/>
+      <dia:attribute name="operations"/>
+      <dia:attribute name="template">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="templates"/>
     </dia:object>
-    <dia:object type="UML - Class" version="0" id="O22">
+    <dia:object type="UML - Class" version="0" id="O29">
       <dia:attribute name="obj_pos">
-        <dia:point val="-2,20"/>
+        <dia:point val="-14.58,16.27"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="-2.05,19.95;5.55,26.45"/>
+        <dia:rectangle val="-14.63,16.22;-6.83,22.92"/>
       </dia:attribute>
       <dia:attribute name="elem_corner">
-        <dia:point val="-2,20"/>
+        <dia:point val="-14.58,16.27"/>
       </dia:attribute>
       <dia:attribute name="elem_width">
-        <dia:real val="7.5"/>
+        <dia:real val="7.7000000000000002"/>
       </dia:attribute>
       <dia:attribute name="elem_height">
-        <dia:real val="6.4000000000000004"/>
+        <dia:real val="6.5999999999999996"/>
       </dia:attribute>
       <dia:attribute name="name">
-        <dia:string>#entregador#</dia:string>
+        <dia:string>#docente_inscripto#</dia:string>
       </dia:attribute>
       <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
@@ -2731,7 +2994,7 @@
         <dia:string>##</dia:string>
       </dia:attribute>
       <dia:attribute name="abstract">
-        <dia:boolean val="true"/>
+        <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="suppress_attributes">
         <dia:boolean val="false"/>
@@ -2743,13 +3006,13 @@
         <dia:boolean val="true"/>
       </dia:attribute>
       <dia:attribute name="visible_operations">
-        <dia:boolean val="false"/>
+        <dia:boolean val="true"/>
       </dia:attribute>
       <dia:attribute name="visible_comments">
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="wrap_operations">
-        <dia:boolean val="true"/>
+        <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="wrap_after_char">
         <dia:int val="40"/>
@@ -2803,7 +3066,7 @@
         <dia:real val="1"/>
       </dia:attribute>
       <dia:attribute name="comment_font_height">
-        <dia:real val="1"/>
+        <dia:real val="0.69999999999999996"/>
       </dia:attribute>
       <dia:attribute name="attributes">
         <dia:composite type="umlattribute">
@@ -2811,7 +3074,7 @@
             <dia:string>#id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
+            <dia:string>#INTEGER#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -2820,7 +3083,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+            <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -2831,19 +3094,19 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#tipo#</dia:string>
+            <dia:string>#curso_id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#CHAR(1)#</dia:string>
+            <dia:string>#INT#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="comment">
-            <dia:string>#Tipo de entregador para polimorfismo: 'd' (docente), 'a' (alumno), 'g' (grupo) o 'e' (entregador, en realidad no debería estar nunca).#</dia:string>
+            <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="1"/>
+            <dia:enum val="2"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -2854,10 +3117,10 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#nota#</dia:string>
+            <dia:string>#docente_id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#FLOAT#</dia:string>
+            <dia:string>#INT#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -2866,7 +3129,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+            <dia:enum val="2"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -2877,10 +3140,10 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#nota_cursada#</dia:string>
+            <dia:string>#corrige#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#FLOAT#</dia:string>
+            <dia:string>#TINYINT#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -2900,10 +3163,10 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#activo#</dia:string>
+            <dia:string>#observaciones#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#BOOL#</dia:string>
+            <dia:string>#TEXT#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -2921,181 +3184,80 @@
             <dia:boolean val="false"/>
           </dia:attribute>
         </dia:composite>
-        <dia:composite type="umlattribute">
+      </dia:attribute>
+      <dia:attribute name="operations">
+        <dia:composite type="umloperation">
           <dia:attribute name="name">
-            <dia:string>#observaciones#</dia:string>
+            <dia:string>#Primary Key#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="stereotype">
+            <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#TEXT#</dia:string>
+            <dia:string>#pk#</dia:string>
           </dia:attribute>
-          <dia:attribute name="value">
-            <dia:string>##</dia:string>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="comment">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="3"/>
-          </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="class_scope">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-        </dia:composite>
-      </dia:attribute>
-      <dia:attribute name="operations"/>
-      <dia:attribute name="template">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="templates"/>
-    </dia:object>
-    <dia:object type="UML - Generalization" version="1" id="O23">
-      <dia:attribute name="obj_pos">
-        <dia:point val="1.75,26.4"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="-5.35,26.35;2.6,32.9997"/>
-      </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="1.75,26.4"/>
-        <dia:point val="1.75,29.6748"/>
-        <dia:point val="-5.3,29.6748"/>
-        <dia:point val="-5.3,32.9497"/>
-      </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="1"/>
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-      </dia:attribute>
-      <dia:attribute name="orth_autoroute">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="text_colour">
-        <dia:color val="#000000"/>
-      </dia:attribute>
-      <dia:attribute name="line_colour">
-        <dia:color val="#000000"/>
-      </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="stereotype">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O22" connection="6"/>
-        <dia:connection handle="1" to="O4" connection="18"/>
-      </dia:connections>
-      <dia:childnode parent="O0"/>
-    </dia:object>
-    <dia:object type="UML - Generalization" version="1" id="O24">
-      <dia:attribute name="obj_pos">
-        <dia:point val="1.75,26.4"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="0.9,26.35;11.8,32.9997"/>
-      </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="1.75,26.4"/>
-        <dia:point val="1.75,29.6749"/>
-        <dia:point val="11.75,29.6749"/>
-        <dia:point val="11.75,32.9497"/>
-      </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="1"/>
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-      </dia:attribute>
-      <dia:attribute name="orth_autoroute">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="text_colour">
-        <dia:color val="#000000"/>
-      </dia:attribute>
-      <dia:attribute name="line_colour">
-        <dia:color val="#000000"/>
-      </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="stereotype">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O22" connection="6"/>
-        <dia:connection handle="1" to="O15" connection="16"/>
-      </dia:connections>
-      <dia:childnode parent="O0"/>
-    </dia:object>
-    <dia:object type="UML - Note" version="0" id="O25">
-      <dia:attribute name="obj_pos">
-        <dia:point val="12,48"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="11.95,47.95;17.85,52.15"/>
-      </dia:attribute>
-      <dia:attribute name="elem_corner">
-        <dia:point val="12,48"/>
-      </dia:attribute>
-      <dia:attribute name="elem_width">
-        <dia:real val="5.8000000000000007"/>
-      </dia:attribute>
-      <dia:attribute name="elem_height">
-        <dia:real val="4.1000000000000005"/>
-      </dia:attribute>
-      <dia:attribute name="line_colour">
-        <dia:color val="#000000"/>
-      </dia:attribute>
-      <dia:attribute name="fill_colour">
-        <dia:color val="#ffffff"/>
-      </dia:attribute>
-      <dia:attribute name="text">
-        <dia:composite type="text">
-          <dia:attribute name="string">
-            <dia:string>#_ es PK física
-# es PK lógica
-- es para
-  polimorfismo#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="font">
-            <dia:font family="monospace" style="0" name="Courier"/>
-          </dia:attribute>
-          <dia:attribute name="height">
-            <dia:real val="0.80000000000000004"/>
+          <dia:attribute name="inheritance_type">
+            <dia:enum val="2"/>
           </dia:attribute>
-          <dia:attribute name="pos">
-            <dia:point val="12.35,49.2"/>
+          <dia:attribute name="query">
+            <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="color">
-            <dia:color val="#000000"/>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="alignment">
-            <dia:enum val="0"/>
+          <dia:attribute name="parameters">
+            <dia:composite type="umlparameter">
+              <dia:attribute name="name">
+                <dia:string>#id#</dia:string>
+              </dia:attribute>
+              <dia:attribute name="type">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="value">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="comment">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="kind">
+                <dia:enum val="0"/>
+              </dia:attribute>
+            </dia:composite>
           </dia:attribute>
         </dia:composite>
       </dia:attribute>
-      <dia:childnode parent="O0"/>
+      <dia:attribute name="template">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="templates"/>
     </dia:object>
-    <dia:object type="UML - Class" version="0" id="O26">
+    <dia:object type="UML - Class" version="0" id="O30">
       <dia:attribute name="obj_pos">
-        <dia:point val="-17,7"/>
+        <dia:point val="-3.08,20.52"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="-17.05,6.95;-13.15,8.45"/>
+        <dia:rectangle val="-3.13,20.47;5.52,25.37"/>
       </dia:attribute>
       <dia:attribute name="elem_corner">
-        <dia:point val="-17,7"/>
+        <dia:point val="-3.08,20.52"/>
       </dia:attribute>
       <dia:attribute name="elem_width">
-        <dia:real val="3.7999999999999998"/>
+        <dia:real val="8.5500000000000007"/>
       </dia:attribute>
       <dia:attribute name="elem_height">
-        <dia:real val="1.3999999999999999"/>
+        <dia:real val="4.8000000000000007"/>
       </dia:attribute>
       <dia:attribute name="name">
-        <dia:string>#docente#</dia:string>
+        <dia:string>#entregador#</dia:string>
       </dia:attribute>
       <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
@@ -3113,7 +3275,7 @@
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="visible_attributes">
-        <dia:boolean val="false"/>
+        <dia:boolean val="true"/>
       </dia:attribute>
       <dia:attribute name="visible_operations">
         <dia:boolean val="false"/>
@@ -3178,31 +3340,124 @@
       <dia:attribute name="comment_font_height">
         <dia:real val="1"/>
       </dia:attribute>
-      <dia:attribute name="attributes"/>
+      <dia:attribute name="attributes">
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#nota#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#INT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#nota_cursada#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#INT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#activo#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#BOOL#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#observaciones#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#VARCHAR#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
       <dia:attribute name="operations"/>
       <dia:attribute name="template">
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="templates"/>
     </dia:object>
-    <dia:object type="UML - Class" version="0" id="O27">
+    <dia:object type="UML - Class" version="0" id="O31">
       <dia:attribute name="obj_pos">
-        <dia:point val="2,39"/>
+        <dia:point val="-9.13,32.72"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="1.95,38.95;5.55,40.45"/>
+        <dia:rectangle val="-9.18,32.67;-1.23,38.37"/>
       </dia:attribute>
       <dia:attribute name="elem_corner">
-        <dia:point val="2,39"/>
+        <dia:point val="-9.13,32.72"/>
       </dia:attribute>
       <dia:attribute name="elem_width">
-        <dia:real val="3.5"/>
+        <dia:real val="7.8499999999999996"/>
       </dia:attribute>
       <dia:attribute name="elem_height">
-        <dia:real val="1.3999999999999999"/>
+        <dia:real val="5.5999999999999996"/>
       </dia:attribute>
       <dia:attribute name="name">
-        <dia:string>#alumno#</dia:string>
+        <dia:string>#alumno_inscripto#</dia:string>
       </dia:attribute>
       <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
@@ -3220,7 +3475,7 @@
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="visible_attributes">
-        <dia:boolean val="false"/>
+        <dia:boolean val="true"/>
       </dia:attribute>
       <dia:attribute name="visible_operations">
         <dia:boolean val="false"/>
@@ -3229,7 +3484,7 @@
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="wrap_operations">
-        <dia:boolean val="true"/>
+        <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="wrap_after_char">
         <dia:int val="40"/>
@@ -3283,33 +3538,198 @@
         <dia:real val="1"/>
       </dia:attribute>
       <dia:attribute name="comment_font_height">
-        <dia:real val="1"/>
+        <dia:real val="0.69999999999999996"/>
+      </dia:attribute>
+      <dia:attribute name="attributes">
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#id#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#INTEGER#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="true"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#curso_id#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#INT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="2"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#alumno_id#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#INT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="2"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#condicional#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#TINYINT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#tutor_id#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#INT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+      <dia:attribute name="operations">
+        <dia:composite type="umloperation">
+          <dia:attribute name="name">
+            <dia:string>#Primary Key#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="stereotype">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#pk#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="inheritance_type">
+            <dia:enum val="2"/>
+          </dia:attribute>
+          <dia:attribute name="query">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="parameters">
+            <dia:composite type="umlparameter">
+              <dia:attribute name="name">
+                <dia:string>#id#</dia:string>
+              </dia:attribute>
+              <dia:attribute name="type">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="value">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="comment">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="kind">
+                <dia:enum val="0"/>
+              </dia:attribute>
+            </dia:composite>
+          </dia:attribute>
+        </dia:composite>
       </dia:attribute>
-      <dia:attribute name="attributes"/>
-      <dia:attribute name="operations"/>
       <dia:attribute name="template">
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="templates"/>
     </dia:object>
-    <dia:object type="UML - Class" version="0" id="O28">
+    <dia:object type="UML - Class" version="0" id="O32">
       <dia:attribute name="obj_pos">
-        <dia:point val="-14,17"/>
+        <dia:point val="-20.28,35.22"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="-14.05,16.95;-6.25,22.65"/>
+        <dia:rectangle val="-20.33,35.17;-12.38,40.87"/>
       </dia:attribute>
       <dia:attribute name="elem_corner">
-        <dia:point val="-14,17"/>
+        <dia:point val="-20.28,35.22"/>
       </dia:attribute>
       <dia:attribute name="elem_width">
-        <dia:real val="7.7000000000000002"/>
+        <dia:real val="7.8499999999999996"/>
       </dia:attribute>
       <dia:attribute name="elem_height">
         <dia:real val="5.5999999999999996"/>
       </dia:attribute>
       <dia:attribute name="name">
-        <dia:string>#docente_inscripto#</dia:string>
+        <dia:string>#curso#</dia:string>
       </dia:attribute>
       <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
@@ -3336,7 +3756,7 @@
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="wrap_operations">
-        <dia:boolean val="true"/>
+        <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="wrap_after_char">
         <dia:int val="40"/>
@@ -3390,7 +3810,7 @@
         <dia:real val="1"/>
       </dia:attribute>
       <dia:attribute name="comment_font_height">
-        <dia:real val="1"/>
+        <dia:real val="0.69999999999999996"/>
       </dia:attribute>
       <dia:attribute name="attributes">
         <dia:composite type="umlattribute">
@@ -3398,7 +3818,7 @@
             <dia:string>#id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
+            <dia:string>#INTEGER#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -3407,7 +3827,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+            <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -3418,7 +3838,7 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#docente_id#</dia:string>
+            <dia:string>#anio#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
             <dia:string>#INT#</dia:string>
@@ -3441,7 +3861,7 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#curso_id#</dia:string>
+            <dia:string>#cuatrimestre#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
             <dia:string>#INT#</dia:string>
@@ -3464,10 +3884,10 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#corrige#</dia:string>
+            <dia:string>#numero#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#BOOL#</dia:string>
+            <dia:string>#INT#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -3476,7 +3896,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+            <dia:enum val="2"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -3487,10 +3907,10 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#observaciones#</dia:string>
+            <dia:string>#descripcion#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#TEXT#</dia:string>
+            <dia:string>#VARCHAR#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -3509,237 +3929,351 @@
           </dia:attribute>
         </dia:composite>
       </dia:attribute>
-      <dia:attribute name="operations"/>
+      <dia:attribute name="operations">
+        <dia:composite type="umloperation">
+          <dia:attribute name="name">
+            <dia:string>#Primary Key#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="stereotype">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#pk#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="visibility">
+            <dia:enum val="0"/>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="inheritance_type">
+            <dia:enum val="2"/>
+          </dia:attribute>
+          <dia:attribute name="query">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="parameters">
+            <dia:composite type="umlparameter">
+              <dia:attribute name="name">
+                <dia:string>#id#</dia:string>
+              </dia:attribute>
+              <dia:attribute name="type">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="value">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="comment">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="kind">
+                <dia:enum val="0"/>
+              </dia:attribute>
+            </dia:composite>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
       <dia:attribute name="template">
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="templates"/>
     </dia:object>
-    <dia:object type="UML - Association" version="1" id="O29">
+    <dia:object type="UML - Class" version="0" id="O33">
       <dia:attribute name="obj_pos">
-        <dia:point val="-14,20.5"/>
+        <dia:point val="0.52,43.645"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="-15.675,19.8;-13.95,39.8"/>
+        <dia:rectangle val="0.47,43.595;6.27,49.295"/>
       </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="-14,20.5"/>
-        <dia:point val="-15.625,20.5"/>
-        <dia:point val="-15.625,39"/>
+      <dia:attribute name="elem_corner">
+        <dia:point val="0.52,43.645"/>
       </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
+      <dia:attribute name="elem_width">
+        <dia:real val="5.7000000000000002"/>
       </dia:attribute>
-      <dia:attribute name="autorouting">
-        <dia:boolean val="true"/>
+      <dia:attribute name="elem_height">
+        <dia:real val="5.5999999999999996"/>
       </dia:attribute>
       <dia:attribute name="name">
+        <dia:string>#miembro#</dia:string>
+      </dia:attribute>
+      <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
       </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
+      <dia:attribute name="comment">
+        <dia:string>##</dia:string>
       </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
+      <dia:attribute name="abstract">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="suppress_attributes">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="suppress_operations">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="visible_attributes">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="visible_operations">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="visible_comments">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="wrap_operations">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="wrap_after_char">
+        <dia:int val="40"/>
+      </dia:attribute>
+      <dia:attribute name="comment_line_length">
+        <dia:int val="40"/>
+      </dia:attribute>
+      <dia:attribute name="comment_tagging">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="line_color">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="fill_color">
+        <dia:color val="#ffffff"/>
+      </dia:attribute>
+      <dia:attribute name="text_color">
+        <dia:color val="#000000"/>
+      </dia:attribute>
+      <dia:attribute name="normal_font">
+        <dia:font family="monospace" style="0" name="Courier"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_font">
+        <dia:font family="monospace" style="88" name="Courier-BoldOblique"/>
+      </dia:attribute>
+      <dia:attribute name="polymorphic_font">
+        <dia:font family="monospace" style="8" name="Courier-Oblique"/>
+      </dia:attribute>
+      <dia:attribute name="classname_font">
+        <dia:font family="sans" style="80" name="Helvetica-Bold"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_classname_font">
+        <dia:font family="sans" style="88" name="Helvetica-BoldOblique"/>
+      </dia:attribute>
+      <dia:attribute name="comment_font">
+        <dia:font family="sans" style="8" name="Helvetica-Oblique"/>
+      </dia:attribute>
+      <dia:attribute name="normal_font_height">
+        <dia:real val="0.80000000000000004"/>
+      </dia:attribute>
+      <dia:attribute name="polymorphic_font_height">
+        <dia:real val="0.80000000000000004"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_font_height">
+        <dia:real val="0.80000000000000004"/>
+      </dia:attribute>
+      <dia:attribute name="classname_font_height">
+        <dia:real val="1"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_classname_font_height">
+        <dia:real val="1"/>
+      </dia:attribute>
+      <dia:attribute name="comment_font_height">
+        <dia:real val="0.69999999999999996"/>
+      </dia:attribute>
+      <dia:attribute name="attributes">
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#id#</dia:string>
           </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#*#</dia:string>
+          <dia:attribute name="type">
+            <dia:string>#INTEGER#</dia:string>
           </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
             <dia:enum val="0"/>
           </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="true"/>
+          </dia:attribute>
         </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#grupo_id#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#INT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#1#</dia:string>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="arrow">
+          <dia:attribute name="visibility">
+            <dia:enum val="2"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+        </dia:composite>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#alumno_id#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#INT#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
+          </dia:attribute>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="0"/>
+            <dia:enum val="2"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
           </dia:attribute>
         </dia:composite>
-      </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O28" connection="12"/>
-        <dia:connection handle="1" to="O1" connection="1"/>
-      </dia:connections>
-      <dia:childnode parent="O0"/>
-    </dia:object>
-    <dia:object type="UML - Association" version="1" id="O30">
-      <dia:attribute name="obj_pos">
-        <dia:point val="-14,19.7"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="-15.05,7;-12.15,20.6"/>
-      </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="-14,19.7"/>
-        <dia:point val="-15,19.7"/>
-        <dia:point val="-15,13.7"/>
-        <dia:point val="-12.2,13.7"/>
-        <dia:point val="-12.2,7.7"/>
-        <dia:point val="-13.2,7.7"/>
-      </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="autorouting">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#alta#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="type">
+            <dia:string>#TIME#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="value">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#*#</dia:string>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
+          <dia:attribute name="visibility">
+            <dia:enum val="3"/>
           </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
           </dia:attribute>
         </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
+        <dia:composite type="umlattribute">
+          <dia:attribute name="name">
+            <dia:string>#baja#</dia:string>
           </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#1#</dia:string>
+          <dia:attribute name="type">
+            <dia:string>#TIME#</dia:string>
           </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
+          <dia:attribute name="value">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+          <dia:attribute name="comment">
+            <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="0"/>
+            <dia:enum val="3"/>
+          </dia:attribute>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
+          </dia:attribute>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
           </dia:attribute>
         </dia:composite>
       </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O28" connection="10"/>
-        <dia:connection handle="1" to="O26" connection="4"/>
-      </dia:connections>
-      <dia:childnode parent="O0"/>
-    </dia:object>
-    <dia:object type="UML - Association" version="1" id="O31">
-      <dia:attribute name="obj_pos">
-        <dia:point val="-9,38.1"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="-10.2,22.55;-8.55,39"/>
-      </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="-9,38.1"/>
-        <dia:point val="-10.15,38.1"/>
-        <dia:point val="-10.15,22.6"/>
-      </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-      </dia:attribute>
-      <dia:attribute name="autorouting">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#*#</dia:string>
+      <dia:attribute name="operations">
+        <dia:composite type="umloperation">
+          <dia:attribute name="name">
+            <dia:string>#Primary Key#</dia:string>
           </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
+          <dia:attribute name="stereotype">
+            <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+          <dia:attribute name="type">
+            <dia:string>#pk#</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
             <dia:enum val="0"/>
           </dia:attribute>
-        </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
+          <dia:attribute name="comment">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#0..1#</dia:string>
+          <dia:attribute name="abstract">
+            <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="arrow">
+          <dia:attribute name="inheritance_type">
+            <dia:enum val="2"/>
+          </dia:attribute>
+          <dia:attribute name="query">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
+          <dia:attribute name="parameters">
+            <dia:composite type="umlparameter">
+              <dia:attribute name="name">
+                <dia:string>#id#</dia:string>
+              </dia:attribute>
+              <dia:attribute name="type">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="value">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="comment">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="kind">
+                <dia:enum val="0"/>
+              </dia:attribute>
+            </dia:composite>
           </dia:attribute>
         </dia:composite>
       </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O4" connection="16"/>
-        <dia:connection handle="1" to="O28" connection="6"/>
-      </dia:connections>
-      <dia:childnode parent="O0"/>
+      <dia:attribute name="template">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="templates"/>
     </dia:object>
-    <dia:object type="UML - Class" version="0" id="O32">
+    <dia:object type="UML - Class" version="0" id="O34">
       <dia:attribute name="obj_pos">
-        <dia:point val="11,15"/>
+        <dia:point val="8.07,32.945"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="10.95,14.95;17.15,19.85"/>
+        <dia:rectangle val="8.02,32.895;15.62,37.795"/>
       </dia:attribute>
       <dia:attribute name="elem_corner">
-        <dia:point val="11,15"/>
+        <dia:point val="8.07,32.945"/>
       </dia:attribute>
       <dia:attribute name="elem_width">
-        <dia:real val="6.0999999999999996"/>
+        <dia:real val="7.5"/>
       </dia:attribute>
       <dia:attribute name="elem_height">
         <dia:real val="4.8000000000000007"/>
       </dia:attribute>
       <dia:attribute name="name">
-        <dia:string>#tutor#</dia:string>
+        <dia:string>#grupo#</dia:string>
       </dia:attribute>
       <dia:attribute name="stereotype">
         <dia:string>##</dia:string>
@@ -3766,7 +4300,7 @@
         <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="wrap_operations">
-        <dia:boolean val="true"/>
+        <dia:boolean val="false"/>
       </dia:attribute>
       <dia:attribute name="wrap_after_char">
         <dia:int val="40"/>
@@ -3820,15 +4354,15 @@
         <dia:real val="1"/>
       </dia:attribute>
       <dia:attribute name="comment_font_height">
-        <dia:real val="1"/>
+        <dia:real val="0.69999999999999996"/>
       </dia:attribute>
       <dia:attribute name="attributes">
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#grupo_id#</dia:string>
+            <dia:string>#id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#INT#</dia:string>
+            <dia:string>#INTEGER#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -3837,7 +4371,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="2"/>
+            <dia:enum val="0"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -3848,7 +4382,7 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#docente_id#</dia:string>
+            <dia:string>#curso_id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
             <dia:string>#INT#</dia:string>
@@ -3866,15 +4400,15 @@
             <dia:boolean val="false"/>
           </dia:attribute>
           <dia:attribute name="class_scope">
-            <dia:boolean val="true"/>
+            <dia:boolean val="false"/>
           </dia:attribute>
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#alta#</dia:string>
+            <dia:string>#nombre#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#DATE#</dia:string>
+            <dia:string>#VARCHAR#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -3883,7 +4417,7 @@
             <dia:string>##</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
-            <dia:enum val="3"/>
+            <dia:enum val="2"/>
           </dia:attribute>
           <dia:attribute name="abstract">
             <dia:boolean val="false"/>
@@ -3894,10 +4428,10 @@
         </dia:composite>
         <dia:composite type="umlattribute">
           <dia:attribute name="name">
-            <dia:string>#baja#</dia:string>
+            <dia:string>#responsable_id#</dia:string>
           </dia:attribute>
           <dia:attribute name="type">
-            <dia:string>#DATE#</dia:string>
+            <dia:string>#INT#</dia:string>
           </dia:attribute>
           <dia:attribute name="value">
             <dia:string>##</dia:string>
@@ -3916,148 +4450,60 @@
           </dia:attribute>
         </dia:composite>
       </dia:attribute>
-      <dia:attribute name="operations"/>
-      <dia:attribute name="template">
-        <dia:boolean val="false"/>
-      </dia:attribute>
-      <dia:attribute name="templates"/>
-    </dia:object>
-    <dia:object type="UML - Association" version="1" id="O33">
-      <dia:attribute name="obj_pos">
-        <dia:point val="11,17.7"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="-6.37071,17;11,18.6"/>
-      </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="11,17.7"/>
-        <dia:point val="11,17.7"/>
-        <dia:point val="-6.3,17.7"/>
-        <dia:point val="-6.3,17.7"/>
-      </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="autorouting">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#*#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
+      <dia:attribute name="operations">
+        <dia:composite type="umloperation">
+          <dia:attribute name="name">
+            <dia:string>#Primary Key#</dia:string>
           </dia:attribute>
-        </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
+          <dia:attribute name="stereotype">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#1#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
-            <dia:boolean val="false"/>
-          </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+          <dia:attribute name="type">
+            <dia:string>#pk#</dia:string>
           </dia:attribute>
           <dia:attribute name="visibility">
             <dia:enum val="0"/>
           </dia:attribute>
-        </dia:composite>
-      </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O32" connection="10"/>
-        <dia:connection handle="1" to="O28" connection="4"/>
-      </dia:connections>
-      <dia:childnode parent="O0"/>
-    </dia:object>
-    <dia:object type="UML - Association" version="1" id="O34">
-      <dia:attribute name="obj_pos">
-        <dia:point val="17.1,16.9"/>
-      </dia:attribute>
-      <dia:attribute name="obj_bb">
-        <dia:rectangle val="15.45,16.2;18.2,34.6"/>
-      </dia:attribute>
-      <dia:attribute name="orth_points">
-        <dia:point val="17.1,16.9"/>
-        <dia:point val="18.1,16.9"/>
-        <dia:point val="18.1,33.7"/>
-        <dia:point val="15.5,33.7"/>
-      </dia:attribute>
-      <dia:attribute name="orth_orient">
-        <dia:enum val="0"/>
-        <dia:enum val="1"/>
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="autorouting">
-        <dia:boolean val="true"/>
-      </dia:attribute>
-      <dia:attribute name="name">
-        <dia:string>##</dia:string>
-      </dia:attribute>
-      <dia:attribute name="direction">
-        <dia:enum val="0"/>
-      </dia:attribute>
-      <dia:attribute name="ends">
-        <dia:composite>
-          <dia:attribute name="role">
+          <dia:attribute name="comment">
             <dia:string>##</dia:string>
           </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#*#</dia:string>
-          </dia:attribute>
-          <dia:attribute name="arrow">
+          <dia:attribute name="abstract">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
-          </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
-          </dia:attribute>
-        </dia:composite>
-        <dia:composite>
-          <dia:attribute name="role">
-            <dia:string>##</dia:string>
-          </dia:attribute>
-          <dia:attribute name="multiplicity">
-            <dia:string>#1#</dia:string>
+          <dia:attribute name="inheritance_type">
+            <dia:enum val="2"/>
           </dia:attribute>
-          <dia:attribute name="arrow">
+          <dia:attribute name="query">
             <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="aggregate">
-            <dia:enum val="0"/>
+          <dia:attribute name="class_scope">
+            <dia:boolean val="false"/>
           </dia:attribute>
-          <dia:attribute name="visibility">
-            <dia:enum val="0"/>
+          <dia:attribute name="parameters">
+            <dia:composite type="umlparameter">
+              <dia:attribute name="name">
+                <dia:string>#id#</dia:string>
+              </dia:attribute>
+              <dia:attribute name="type">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="value">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="comment">
+                <dia:string>##</dia:string>
+              </dia:attribute>
+              <dia:attribute name="kind">
+                <dia:enum val="0"/>
+              </dia:attribute>
+            </dia:composite>
           </dia:attribute>
         </dia:composite>
       </dia:attribute>
-      <dia:connections>
-        <dia:connection handle="0" to="O32" connection="9"/>
-        <dia:connection handle="1" to="O15" connection="4"/>
-      </dia:connections>
+      <dia:attribute name="template">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="templates"/>
     </dia:object>
   </dia:layer>
 </dia:diagram>