Fuzzy Based Paradigm for Requirement Analysis in System Development Life Cycle

The evolutionary based computational approach has been matured into an extensive collection of concepts and techniques with The hype in The complexities of The problems which could not be easily dealt by The classical approach. The effectiveness and efficiency of these modern approaches are making them popular in The field of research and development. in this paper, we have focused on The involvement of a multi valued logical evolutionary based computational approach in The development of an effective system. This paper describes The area where fuzzy logic can be implemented effectively in system development life cycle. this paper explicitly mentions The application of fuzzy Inference system (FIS) in one of The fact finding techniques of requirement analysis viz. rating scale question method to find The percentage level of The satisfaction of The user of an existing system or a new system.