Extend

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Extend

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Semantics

An extend relationship defines that instances of a use case may be augmented with some additional behavior defined in an extending use case.

Procedure for creating extend

In order to create extend, click [Toolbox] -> [UseCase] -> [Extend] button, drag from element extending and drop to element extended in the [main window].

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Procedure for creating other usecase extending current usecase

Enter with "<e-" string at the quick dialog as following.

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So extend relationship is created between two elements.

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