Combining Classes

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If different teams are working on different scenarios, a class may be called by different names . The name conflicts must be resolved. This is accomplished mainly through model walk-throughs . Examine each class along with its definition. Also examine the attributes and operations defined for the classes, and look for the use of synonyms. Once you determine that two classes are doing the same thing, choose the class with the name that is closest to the language used by the customers.

Pay careful attention to the control classes created for the system. Initially, one control class is allocated per use case. This might be overkill ”control classes with similar behavior may be combined. Examine the sequencing logic in the control classes for the system. If it is very similar, the control classes may be combined into one control class.

In the ESU Course Registration System there is a control class for the Maintain Course Information use case and one for the Create Course Catalog use case. Each control class gets information from a boundary class and deals with course information. It is possible that these two control classes could be combined since they have similar behavior and access similar information.

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Visual Modeling with Rational Rose 2002 and UML
Visual Modeling with Rational Rose 2002 and UML (3rd Edition)
ISBN: 0201729326
EAN: 2147483647
Year: 2002
Pages: 134

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