基于解释结构模型的需求最高优先级设定方法

对用户需求进行排序是软件项目开发的基础。针对当前需求优先级排序方法,将用户需求放在同一层次上进行比较设定优先级,而对需求层次性和对多个需求整体赋予优先级则考虑的不多。从需求的层次性出发,用解释结构模型对需求进行分层处理;然后对顶层需求的相关需求集进行交运算,整体设定需求的最高优先级;最后给出案例分析。结果表明,该方法能够突出需求层次性,直接生成最高优先级需求集,提高需求优先级设定的效率。

Method of setting the highest priority of requirements based on the ISM

In software project, it is the basis for the development of the project that the user requirements are prioritized. In the methods of current requirements prioritization, the user requirements were compared and prioritized on the same level, and the hierarchy of requirements was few considered. In this paper, a method of setting the highest priority of requirements based on the interpretative structural model was proposed. First, the hierarchical model of software requirements was built with ISM. Next, the intersections of the top each requirements were related were operated, and these requirements were given the highest priority. Final, the case analysis were given. The results show that this method can highlight the levels of the requirements, elicit the requirements set with the highest priority, and improve the efficiency of requirements prioritizing.