The Research And Application Of Use Case-Driven Requiements Engineering

Since the 1990s, Requirements Engineering has become one of the studying hotspots. The advent of Use Case technique brings gospel for the users, who can participant the object-oriented software development process really. In the domain of OOSP, RUP wins users well by its strong Market Competition, brought by its characteristics 'Use Case-driven', 'center on architecture', and 'develop iteratively and incrementally'.RUP is a universal process template and it is very huge, there isn't any project will use it wholly, we need 'quantity form dress' according to the project in the operating process. Aim at the information system's characteristics, this thesis brings forward RRUP, which can be extensible well, for Requirements Development and Requirements Management by reducing RUP. This thesis designs and implements a Requirements Management Tool-RMBRS basing on RRUP.Requirements' capture and expression is always one of the studying hotspots and difficulties, Requirements are expressed by Use Case during RRUP. This thesis proposed the view Use Case's layer & rank expression to help users grasp the 'general situation' and 'small details'.The inducement of Use Case is the most difficult problem when we capture requirements, there isn't a method accepted generally can solve the problem in theory by now. This thesis adopts RGIPO inducement method based on the layer & rank expression of Use Case to educe the Use Cases of information system. This thesis gives a universal Use Case model for the regulation of expression. To solve the problem whose responsibility is obscure, this thesis extends RGIPO method, adopting the thought assigning actor to the post and decentralized authorization to realize the right matches the responsibility. Approaches this thesis put forward are verified in NTOPSS.