Research on the Business-flow-oriented Model for Requirement Acquirement

Based on the set theory and graph theory, this paper proposes a business-flow-oriented requirements acquirement model. Then a correlative graph model named as conditional directed graphs is used in our model. The acquirement model is also introduced into our actual project. The model can help requirement analyst to analysis and optimize current business processes so as to enhance software requirement quality, reduce software changing and reduce software costs. It is convenient to understand and communicate between users and requirement analyst too.