Ch 6 - Chapter - 6 Click to edit Master subtitle style Use...

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Click to edit Master subtitle style Chapter - 6 Use Cases
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Chapter Objectives Identify and write use cases Use brief, casual, and fully dressed formats Apply tests to identify suitable use cases Relate use case analysis to iterative development
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Introduction Types: business use cases system use cases (our focus) Use cases tell a story of actors using a system. Illustrate functional requirements, by stories they tell.
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Actors, Scenarios, and Use Cases Actor Something with behavior Scenario Specific sequence of actions and interactions between actors and system Called a use case instance Use case Collection of related success and failure scenarios describing actor’s use of system Are text , not diagrams
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Three Kinds of Actors Primary Has goals fulfilled using system services User goals drive use cases Supporting Provides a service Clarifies external interfaces and protocols Offstage Has interest Ensures all necessary interests are identified
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This note was uploaded on 08/29/2011 for the course SEN 632 taught by Professor Aslam-mir during the Spring '11 term at National.

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Ch 6 - Chapter - 6 Click to edit Master subtitle style Use...

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