Chapter 6. Use Cases

 

The indispensable first step to getting the things you want out of life: decide what you want.

 
 --Ben Stein

Objectives

  • Identify and write use cases.

  • Use the brief, casual, and fully dressed formats, in an essential style.

  • Apply tests to identify suitable use cases.

  • Relate use case analysis to iterative development.

Introduction

Use cases are text stories, widely used to discover and record requirements. They influence many aspects of a project—including OOA/D—and will be input to many subsequent artifacts in the case studies. This chapter explores basic concepts, including how to write use cases and draw a UML use case diagram. This chapter also shows the value of analysis skill over knowing UML notation; the UML use case diagram ...

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