International Journal of Applied Research on Information Technology and Computing

The evolution of unified modelling language (UML) is absolutely required to make sure that UML will stay up to date with the latest developments in the software industry like modeling non-functional requirements (NFRs). In the past NFR literature many techniques have been identified that have used UML for modelling NFR. Because of great diversity in number and types of NFR it is difficult to be handled by common modelling techniques. So we think of extension of Use Case so that it can more effectively address the changing needs of many different classes of users and NFRs which further assists in specification and quantification of NFR.