Managing Software Requirements: A Use Case Approach, Second Edition

Chapter 21. Refining the Use Cases

Key Points

• To support development and testing activities, the use cases defined earlier in the project must be more fully elaborated.

• The use-case model is reviewed and will often be refactored as well.

• A well-elaborated use case also defines all alternative flows, pre- and post-conditions, and special requirements.

• The additional use-case relationships extend and include help the team structure and maintain the use-case model.

In the earlier team skills, we introduced use cases as a means of expressing requirements for a system. In this chapter, we'll build on what you learned earlier and show you how to describe your increasingly-detailed understanding of the necessary system behavior. If you've kept your thinking ...