一种基于原型驱动的软件需求迭代细化方法

An iterative refinement method of software requirement based on prototype driven

本方法改进以"原型法"为基础,通过在软件界面原型的基础上增加了"成员属性信息"、"成员约束信息"和"非功能需求信息"3项内容,用来描述原型的静态属性特征,同时使用"业务流程图"和"数据流图"定义系统的动态特征。通过这些附加的信息项配合软件原型界面,形成完整的需求定义。本方法还融入了敏捷过程中的"迭代细化"思想,在需求获取和分析过程中通过不断的迭代过程,使需求分析结果逐渐趋向于的用户要求,最终形成一套完整的用户需求文档。使用本方法生成的文档中不仅包括了软件原型界面,还涉及到对于后续设计和开发阶段非常重要的成员约束、非功能需求、业务流程、数据处理过程等内容。它能够有效的对软件设计和开发过程进行定义和限制,避免出现在需求分析过程中信息缺失而导致的开发风险。

The method is improved to ＂prototype＂ as the foundation, through the software interface prototype based on ＂increased the member attribute information＂ , ＂members of the constraint information＂ and ＂non function requirement information＂ three items, used to describe a prototype static attributes. At the same time, ＂the business flow chart＂ and ＂data flow diagram＂ to define the system＇s dynamic characteristics. Through these additional information items with the software prototype interface, the formation of a complete definition of requirements.The method is also integrated into the agile process ＂iterative refinement＂ thought and in the requirements elicitation and analysis process through the iterative process, make the demand analysis results tend to the requirements of users, and ultimately the formation of a complete set of user requirements document.Generated using the method of document includes not only the software prototype interface, also involves for subsequent design and development stage is very important members of the constraints, non functional requirements, business process, data processing of content. It can define and limit the process of software design and development, and avoid the risk of the development of the information loss in the process of requirement analysis.