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DETAILED DESIGN WITH UML Software Engineering Process and Practice 18 May 2003 Dr Michael Papasimeon 1

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OVERVIEW Class Diagrams Inheritance and Abstract Classes Attributes and Associations Roles Aggregation and Composition Association Multiplicity Qualified Associations Programmer Notes 2

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UML CLASS DIAGRAMS 3

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ATTRIBUTE AND METHOD VISIBILITY Attributes and methods can be prefixed with symbols to denote if they are private, protected or public. - Private # Protected + Public 4

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INHERITANCE AND ABSTRACT CLASSES Window DialogWindow Application Window 5

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ATTRIBUTES AND ASSOCIATIONS 6

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ASSOCIATIONS 7

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ASSOCIATION ROLES Window Icon 1 1 -icon identified by 1 1 window 8

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AGGREGATION AND COMPOSITION 9

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MULTIPLICITIES IN ASSOCIATIONS Application Window 0..* 1 1 0..* displays +windows +app 10

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QUALIFIED ASSOCIATIONS Application Window 0..* WindowID : int 1 1 0..* displays +windows +app WindowID : int 11

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NOTES FOR THE PROGRAMMER Application Window 0..* WindowID : int 1 1 0..* displays +windows +app WindowID : int Implement this association as a linked-list. 12