Book.uml

<?xml version='1.0' encoding='UTF-8'?>
 <uml:Package xmi:version="2.1" xmlns:xmi="http://schema.omg.org/spec/XMI/2.1" xmlns:uml="http://www.eclipse.org/uml2/3.0.0/UML" name='AddressBook'> 


 <packagedElement xmi:type='uml:Class' xmi:id='Addr' name='Addr' isAbstract='false' >

    <generalization xmi:type='uml:Generalization' general='Target' />

     <ownedAttribute xmi:type='uml:Property' xmi:id='email' name='email' isReadOnly='true'>
        <type xmi:type="uml:PrimitiveType" href="Boolean"/>
                <upperValue xmi:type='uml:LiteralUnlimitedNatural' value='1' />
                <lowerValue xmi:type='uml:LiteralInteger' value='1' />
     </ownedAttribute>
 </packagedElement>

 <packagedElement xmi:type='uml:Class' xmi:id='Book' name='Book' isAbstract='false' >

     <ownedAttribute xmi:type='uml:Property' xmi:id='names' name='names' isReadOnly='false'>
        <type xmi:idref="Name"/>
                <upperValue xmi:type='uml:LiteralUnlimitedNatural' value='-1' />
                <lowerValue xmi:type='uml:LiteralInteger' value='1' />
     </ownedAttribute>

     <ownedAttribute xmi:type='uml:Property' xmi:id='addr' name='addr' isReadOnly='false'>
        <type xmi:idref="Target"/>
                <upperValue xmi:type='uml:LiteralUnlimitedNatural' value='-1' />
                <lowerValue xmi:type='uml:LiteralInteger' value='0' />
         <qualifier name='a' type='Name' />
     </ownedAttribute>

     <ownedOperation xmi:type='uml:Operation' name='lookup'>
         <ownedParameter xmi:type='uml:Parameter' name='a' type='Name'/>
         <ownedParameter xmi:type='uml:Parameter' type='Addr' direction='return'>
                <upperValue xmi:type='uml:LiteralUnlimitedNatural' value='-1' />
                <lowerValue xmi:type='uml:LiteralInteger' value='0' />
         </ownedParameter>
     </ownedOperation>

     <ownedOperation xmi:type='uml:Operation' name='add'>
         <ownedParameter xmi:type='uml:Parameter' name='a' type='Name'/>
         <ownedParameter xmi:type='uml:Parameter' name='b' type='Target'/>
     </ownedOperation>
 </packagedElement>

 <packagedElement xmi:type='uml:Class' xmi:id='Name' name='Name' isAbstract='false' >

    <generalization xmi:type='uml:Generalization' general='Target' />

     <ownedAttribute xmi:type='uml:Property' xmi:id='type' name='type' isReadOnly='true'>
        <type xmi:idref="Type"/>
                <upperValue xmi:type='uml:LiteralUnlimitedNatural' value='1' />
                <lowerValue xmi:type='uml:LiteralInteger' value='1' />
     </ownedAttribute>
 </packagedElement>

 <packagedElement xmi:type='uml:Class' xmi:id='Target' name='Target' isAbstract='true' >

 </packagedElement>

 <packagedElement xmi:type='uml:Enumeration' xmi:id='Type' name='Type'>
             <ownedLiteral xmi:type='uml:EnumerationLiteral' name='Alias'/>
             <ownedLiteral xmi:type='uml:EnumerationLiteral' name='Group'/>
 </packagedElement> 
 </uml:Package>