Abstract: The development of the domain information source facilitates the domain requirement. Few of the existing domain analysis methods nowadays can clarify the evolution process of domain requirements. Therefore, the method of gap analysis for domain requirement was presented in this paper, which was used to analyze the evolving process in a specific domain. This method analyzed the differences between the as-is requirements and the to-be requirements on the basis of the domain prototype system. Then, the problem-domains that need to be focused on in the evolution process of domain requirements were got, and the evolution model of the domain requirements can be built accordingly. This method is applied in the requirement analysis of banking system, and the effectiveness of the method has been well verified.

Key words: domain analysis, gap analysis, domain prototype system

摘要： 领域信息源的发展变化是推动领域需求不断演进的源泉，已有的领域分析方法中却鲜有对领域需求演变过程和如何演变进行分析的说明。因此，提出了一种领域需求差异分析方法，主要用于对特定领域的需求演变进行分析。该方法借助领域原型系统获取并分析领域需求现状与目标之间的差异问题，从而得到领域需求演进过程需要关注的问题域，并以此为依据建立领域需求演进模型。该方法在银行核心业务领域的需求分析过程中进行了实际应用，充分验证了该方法的有效性。

关键词: 领域分析, 差异分析, 领域原型系统