软件开发中的用例分析技术

用例技术是通过用例、参与者与用例以及用例之间的关系来描绘系统外在需求的一种方法。作为UML(统一建模语言)的一种重要表示法，用例分析方法在软件开发过程中占据着重要的地位。正确使用用例分析方法有助于项目的需求分析、体系结构设计、进度安排、测试和验证。文中简要介绍了增量／迭代式软件过程，通过实例探讨了软件开发中如何使用用例分析技术，包括项目风险分析、确定系统边界、细化事件流、图形化用例以及用例归档技术，从而为获取用例模型提供了有效的方法和途径。

Applying Use Case on the Software Development

The technique of the use case is a method to describe external requirements of system by use case, the relationship between actor and use case, and the relationship between use cases. As a kind of UML(Unified Modeling Language) modeling method, the method of analyzing use case plays a significant role in the process of software development. The method of analyzing use case makes for requirements analysis, system architecture design, a development schedule, and software testing and verification in the project development. This paper introduces briefly increment / iterative development process. Then through example the paper discusses how to conduct venture analysis, ascertain boundary of system, refine flow of events, use case modeling, and create document of use case technologies in the process of software development. Thereby an effective method and approach for obtaining use case model is proposed.