基于组件的用例模型

Component-based Use Case Model

在统一建模语言和面向对象方法学中,用例是获取需求的主要工具。在建立用例模型的过程中,对用例的确定不仅与具体的工程本身有关,而且与用户和分析人员的认识有直接的联系;同时,用例模型所处的需求阶段必须向软件系统开发的其它阶段平滑过渡,以及软件系统的重用和方便维护,也与确定用例有必然的关系。笔者提出解决这些问题的方法,即建立基于组件的用例模型。

Use cases are primary tools of eliciting requirements in UML and object-oriented methodologies.Use case i-dentification concerns not only the projects themselves but also directly the cognition of customers and analysts during constructing use case models.The requirement phase where their models lie in should transit smoothly to other phases,and the system reuse and convenient maintainability relate inevitably to them.The penman presents a solution,that is,constructing component-based use case models.