【摘要】 在面向对象的软件工程中使用UML为系统建模已经成为当前的主流技术。由于UML支持的用例图(Use Case)容易为用户理解,它实际上已经成为了需求分析的主要建模工具,从而形成了用例驱动的软件开发过程。用例图本质上是面向过程的,而不是面向对象的,因而,用例图的使用存在一些值得注意的地方。本文对使用Use Case图建立需求分析模型的常见问题做了介绍,分析了问题的根源,并对一些问题提出了解决建议。更多还原

【Abstract】 In object-oriented software engineering,using UML to mode)the software has become the main critical technique.Since Use Case tool supported by UML is user-easily understandable that the Use case actually plays the role of system modeling.Thus,an Use case driven approach of software system development process has been accepted widely.But Use case tool essentially is process-oriented,not object-oriented, therefore,several remarkable points will rise when using this process in object-oriented software development.The most misuses of Use case diagram in modeling the system requirement are introduced,The causes producing these misuses are analyzed.Some advices to avoid these misuses are also given.更多还原