A Process Model of Software Evolution Requirement Based on Feedback

Software evolution requirement, which is the cross point of software evolution and software requirement, is the source power of software evolution. In order to improve the efficiency and quality of software evolution, this paper modeled the software evolution requirement process. Based on the study of software evolution, software requirement and feedback mechanism, this paper proposed two different types of feedbacks in software evolution requirement process, which perfected the change control process of software evolution requirement. After bringing in colored dual-transitions Petri net (CDPN), process model of software evolution requirement (SERPM) based on feedback was formalized. SERPM can effectively manage the changing process of software evolution requirement and thus software can evolve with high efficiency and quality.