17.1. Use-Case Realizations

To quote, “A use-case realization describes how a particular use case is realized within the design model, in terms of collaborating objects” [RUP]. More precisely, a designer can describe the design of one or more scenarios of a use case; each of these is called a use-case realization. Use-case realization is a UP term or concept used to remind us of the connection between the requirements expressed as use cases, and the object design that satisfies the requirements.

UML interaction diagrams are a common language to illustrate use-case realizations. And as was explored in the prior chapter, there are principles and patterns of object design, such as Information Expert and Low Coupling, that can be applied during this ...

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