Nuevo diagrama de clases.

diff --git a/doc/clases.dia b/doc/clases.dia
new file mode 100644 (file)
index 0000000..50d444f
--- /dev/null
+++ b/doc/clases.dia
@@ -0,0 +1,1032 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<dia:diagram xmlns:dia="http://www.lysator.liu.se/~alla/dia/">
+  <dia:diagramdata>
+    <dia:attribute name="background">
+      <dia:color val="#ffffff"/>
+    </dia:attribute>
+    <dia:attribute name="pagebreak">
+      <dia:color val="#000099"/>
+    </dia:attribute>
+    <dia:attribute name="paper">
+      <dia:composite type="paper">
+        <dia:attribute name="name">
+          <dia:string>#A4#</dia:string>
+        </dia:attribute>
+        <dia:attribute name="tmargin">
+          <dia:real val="2.8222000598907471"/>
+        </dia:attribute>
+        <dia:attribute name="bmargin">
+          <dia:real val="2.8222000598907471"/>
+        </dia:attribute>
+        <dia:attribute name="lmargin">
+          <dia:real val="2.8222000598907471"/>
+        </dia:attribute>
+        <dia:attribute name="rmargin">
+          <dia:real val="2.8222000598907471"/>
+        </dia:attribute>
+        <dia:attribute name="is_portrait">
+          <dia:boolean val="true"/>
+        </dia:attribute>
+        <dia:attribute name="scaling">
+          <dia:real val="1"/>
+        </dia:attribute>
+        <dia:attribute name="fitto">
+          <dia:boolean val="false"/>
+        </dia:attribute>
+      </dia:composite>
+    </dia:attribute>
+    <dia:attribute name="grid">
+      <dia:composite type="grid">
+        <dia:attribute name="width_x">
+          <dia:real val="1"/>
+        </dia:attribute>
+        <dia:attribute name="width_y">
+          <dia:real val="1"/>
+        </dia:attribute>
+        <dia:attribute name="visible_x">
+          <dia:int val="1"/>
+        </dia:attribute>
+        <dia:attribute name="visible_y">
+          <dia:int val="1"/>
+        </dia:attribute>
+        <dia:composite type="color"/>
+      </dia:composite>
+    </dia:attribute>
+    <dia:attribute name="color">
+      <dia:color val="#d8e5e5"/>
+    </dia:attribute>
+    <dia:attribute name="guides">
+      <dia:composite type="guides">
+        <dia:attribute name="hguides"/>
+        <dia:attribute name="vguides"/>
+      </dia:composite>
+    </dia:attribute>
+  </dia:diagramdata>
+  <dia:layer name="Fondo" visible="true">
+    <dia:object type="UML - Class" version="0" id="O0">
+      <dia:attribute name="obj_pos">
+        <dia:point val="6.95,0.8"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="6.9,0.75;10,3.05"/>
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+      <dia:attribute name="elem_corner">
+        <dia:point val="6.95,0.8"/>
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+      <dia:attribute name="elem_width">
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+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2.1999999999999997"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#BTree#</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"/>
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+      <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="true"/>
+      </dia:attribute>
+      <dia:attribute name="visible_comments">
+        <dia:boolean val="false"/>
+      </dia:attribute>
+      <dia:attribute name="wrap_operations">
+        <dia:boolean val="false"/>
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+      <dia:attribute name="wrap_after_char">
+        <dia:int val="40"/>
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+      <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"/>
+      </dia:attribute>
+      <dia:attribute name="polymorphic_font">
+        <dia:font family="monospace" style="8" name="Courier"/>
+      </dia:attribute>
+      <dia:attribute name="classname_font">
+        <dia:font family="sans" style="80" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_classname_font">
+        <dia:font family="sans" style="88" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="comment_font">
+        <dia:font family="sans" style="8" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="font_height">
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+      <dia:attribute name="polymorphic_font_height">
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+      <dia:attribute name="abstract_font_height">
+        <dia:real val="0.80000000000000004"/>
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+      <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 - Class" version="0" id="O1">
+      <dia:attribute name="obj_pos">
+        <dia:point val="6,6.75"/>
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+      <dia:attribute name="obj_bb">
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+      <dia:attribute name="elem_corner">
+        <dia:point val="6,6.75"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="4.9499999999999993"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2.1999999999999997"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#BTreeData#</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"/>
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+      <dia:attribute name="suppress_operations">
+        <dia:boolean val="false"/>
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+      <dia:attribute name="visible_attributes">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="visible_operations">
+        <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="false"/>
+      </dia:attribute>
+      <dia:attribute name="wrap_after_char">
+        <dia:int val="40"/>
+      </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"/>
+      </dia:attribute>
+      <dia:attribute name="polymorphic_font">
+        <dia:font family="monospace" style="8" name="Courier"/>
+      </dia:attribute>
+      <dia:attribute name="classname_font">
+        <dia:font family="sans" style="80" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_classname_font">
+        <dia:font family="sans" style="88" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="comment_font">
+        <dia:font family="sans" style="8" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="font_height">
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+      <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 - Class" version="0" id="O2">
+      <dia:attribute name="obj_pos">
+        <dia:point val="0.5,11.8"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="0.45,11.75;7.45,14.05"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="0.5,11.8"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="6.8999999999999995"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2.1999999999999997"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#BTreeChildData#</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="true"/>
+      </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="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"/>
+      </dia:attribute>
+      <dia:attribute name="polymorphic_font">
+        <dia:font family="monospace" style="8" name="Courier"/>
+      </dia:attribute>
+      <dia:attribute name="classname_font">
+        <dia:font family="sans" style="80" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_classname_font">
+        <dia:font family="sans" style="88" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="comment_font">
+        <dia:font family="sans" style="8" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="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 - Class" version="0" id="O3">
+      <dia:attribute name="obj_pos">
+        <dia:point val="8.95,11.75"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="8.9,11.7;15.8,14"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="8.95,11.75"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="6.7999999999999998"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2.1999999999999997"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#BTreeLeafData#</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="true"/>
+      </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="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"/>
+      </dia:attribute>
+      <dia:attribute name="polymorphic_font">
+        <dia:font family="monospace" style="8" name="Courier"/>
+      </dia:attribute>
+      <dia:attribute name="classname_font">
+        <dia:font family="sans" style="80" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_classname_font">
+        <dia:font family="sans" style="88" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="comment_font">
+        <dia:font family="sans" style="8" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="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 - Class" version="0" id="O4">
+      <dia:attribute name="obj_pos">
+        <dia:point val="21.6,6.75"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="21.55,6.7;24.55,9"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="21.6,6.75"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="2.8999999999999999"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2.1999999999999997"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#Clave#</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="true"/>
+      </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="true"/>
+      </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="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"/>
+      </dia:attribute>
+      <dia:attribute name="polymorphic_font">
+        <dia:font family="monospace" style="8" name="Courier"/>
+      </dia:attribute>
+      <dia:attribute name="classname_font">
+        <dia:font family="sans" style="80" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_classname_font">
+        <dia:font family="sans" style="88" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="comment_font">
+        <dia:font family="sans" style="8" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="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 - Class" version="0" id="O5">
+      <dia:attribute name="obj_pos">
+        <dia:point val="17.85,11.85"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="17.8,11.8;22.1,14.1"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="17.85,11.85"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="4.2000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2.1999999999999997"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#ClaveFija#</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"/>
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+      <dia:attribute name="visible_attributes">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="visible_operations">
+        <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="false"/>
+      </dia:attribute>
+      <dia:attribute name="wrap_after_char">
+        <dia:int val="40"/>
+      </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"/>
+      </dia:attribute>
+      <dia:attribute name="polymorphic_font">
+        <dia:font family="monospace" style="8" name="Courier"/>
+      </dia:attribute>
+      <dia:attribute name="classname_font">
+        <dia:font family="sans" style="80" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_classname_font">
+        <dia:font family="sans" style="88" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="comment_font">
+        <dia:font family="sans" style="8" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="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 - Class" version="0" id="O6">
+      <dia:attribute name="obj_pos">
+        <dia:point val="23.2,11.85"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="23.15,11.8;29.4,14.1"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="23.2,11.85"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="6.1499999999999995"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2.1999999999999997"/>
+      </dia:attribute>
+      <dia:attribute name="name">
+        <dia:string>#ClaveVariable#</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"/>
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+      <dia:attribute name="suppress_operations">
+        <dia:boolean val="false"/>
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+      <dia:attribute name="visible_attributes">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="visible_operations">
+        <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="false"/>
+      </dia:attribute>
+      <dia:attribute name="wrap_after_char">
+        <dia:int val="40"/>
+      </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"/>
+      </dia:attribute>
+      <dia:attribute name="polymorphic_font">
+        <dia:font family="monospace" style="8" name="Courier"/>
+      </dia:attribute>
+      <dia:attribute name="classname_font">
+        <dia:font family="sans" style="80" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="abstract_classname_font">
+        <dia:font family="sans" style="88" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="comment_font">
+        <dia:font family="sans" style="8" name="Helvetica"/>
+      </dia:attribute>
+      <dia:attribute name="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 - Generalization" version="0" id="O7">
+      <dia:attribute name="obj_pos">
+        <dia:point val="8.475,8.95"/>
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+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="3.9,8.9;9.325,11.85"/>
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+      <dia:attribute name="orth_points">
+        <dia:point val="8.475,8.95"/>
+        <dia:point val="8.475,10.65"/>
+        <dia:point val="3.95,10.65"/>
+        <dia:point val="3.95,11.8"/>
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+      <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="false"/>
+      </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="O1" connection="6"/>
+        <dia:connection handle="1" to="O2" connection="1"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Generalization" version="0" id="O8">
+      <dia:attribute name="obj_pos">
+        <dia:point val="8.475,8.95"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="7.625,8.9;12.4,11.8"/>
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+      <dia:attribute name="orth_points">
+        <dia:point val="8.475,8.95"/>
+        <dia:point val="8.475,10.65"/>
+        <dia:point val="12.35,10.65"/>
+        <dia:point val="12.35,11.75"/>
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+      <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="false"/>
+      </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="O1" connection="6"/>
+        <dia:connection handle="1" to="O3" connection="1"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Generalization" version="0" id="O9">
+      <dia:attribute name="obj_pos">
+        <dia:point val="23.05,8.95"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="19.9,8.9;23.9,11.9"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="23.05,8.95"/>
+        <dia:point val="23.05,10.4"/>
+        <dia:point val="19.95,10.4"/>
+        <dia:point val="19.95,11.85"/>
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+      <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="false"/>
+      </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="O4" connection="6"/>
+        <dia:connection handle="1" to="O5" connection="1"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Generalization" version="0" id="O10">
+      <dia:attribute name="obj_pos">
+        <dia:point val="23.05,8.95"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="22.2,8.9;26.325,11.9"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="23.05,8.95"/>
+        <dia:point val="23.05,10.4"/>
+        <dia:point val="26.275,10.4"/>
+        <dia:point val="26.275,11.85"/>
+      </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="false"/>
+      </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="O4" connection="6"/>
+        <dia:connection handle="1" to="O6" connection="1"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="UML - Association" version="0" id="O11">
+      <dia:attribute name="obj_pos">
+        <dia:point val="10.95,7.45"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="10.95,6.75;21.95,8.35"/>
+      </dia:attribute>
+      <dia:attribute name="orth_points">
+        <dia:point val="10.95,7.45"/>
+        <dia:point val="10.95,7.45"/>
+        <dia:point val="21.6,7.45"/>
+        <dia:point val="21.6,7.45"/>
+      </dia:attribute>
+      <dia:attribute name="orth_orient">
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+      </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>#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:composite>
+        <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:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O1" connection="4"/>
+        <dia:connection handle="1" to="O4" connection="3"/>
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+    <dia:object type="UML - Association" version="0" id="O12">
+      <dia:attribute name="obj_pos">
+        <dia:point val="8.475,6.75"/>
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+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="8.4,2.95;8.825,9.15"/>
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+      <dia:attribute name="orth_points">
+        <dia:point val="8.475,6.75"/>
+        <dia:point val="8.475,4.875"/>
+        <dia:point val="8.45,4.875"/>
+        <dia:point val="8.45,3"/>
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+      <dia:attribute name="orth_orient">
+        <dia:enum val="1"/>
+        <dia:enum val="0"/>
+        <dia:enum val="1"/>
+      </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:composite>
+        <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:composite>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O1" connection="1"/>
+        <dia:connection handle="1" to="O0" connection="6"/>
+      </dia:connections>
+    </dia:object>
+  </dia:layer>
+</dia:diagram>