SUMMARY

SUMMARY

• Use cases are a means of expressing requirements on the functionality of the system.

• Written using concise simple prose , use cases are understandable by a wide range of stakeholders.

• Use cases help synchronize the content of various models.

• A use case is managed as a single unit throughout the development.

• Use cases may also be used to model the business, providing a context for the system development.

• Use cases are organized in a use-case model, which also expresses the relationships among them.

• Scenarios are described instances of use cases.

• Use cases drive numerous activities in the Rational Unified Process:

  • Creation and validation of the design model

  • Definition of the test cases and test procedures in the test model

  • Planning of iterations

  • Creation of user manuals

  • Deployment of the system