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[ ClassDiagram ] How to represent defaults

 
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Among the list of possibly many addresses for Person; I would like to model the fact that one of the Address is the default. How do I do that in UML ?

Thanks.
 
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why dont u have a boolean attribute in Address class?
 
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I would probably show two associations, one with multiplicity 1 and role "defaultAddress" and another with multiplicity * and role "optionalAddresses" or something.
 
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