System Behavior

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The behavior of the system under development (i.e., what functionality must be provided by the system) is documented in a use case model that illustrates the system's intended functions (use cases), its surroundings (actors), and relationships between the use cases and actors (use case diagrams). The most important role of a use case model is one of communication. It provides a vehicle used by the customers or end users and the developers to discuss the system's functionality and behavior.

The use case model starts in the Inception Phase with the identification of actors and principal use cases for the system. The model is then matured in the Elaboration Phase ”more detailed information is added to the identified use cases, and additional use cases are added on an as-needed basis.

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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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