Concern-driven development with jUCMNav

The User Requirements Notation (URN) enables the graphical modeling of requirements with goals and scenarios, and jUCMNav is a free, Eclipse-based tool that supports modeling and analysis with URN. Concern-Driven Development (CDD) enables requirements engineers to encapsulate and reason about concerns, whether they are crosscutting (i.e., aspects) or not. However, to truly capitalize on the benefits promised by CDD, concerns need to be encapsulated across software development phases, i.e., across different types of models at different levels of abstraction. Recently, URN was extended to support aspect-oriented concepts. This demonstration focuses on the new concern-driven modeling features of jUCMNav, together with its capabilities to compose aspects together, and to transform aspectual scenario models into design models in the Reusable Aspect Models notation. jUCMNav is hence one of the few tools that enable CDD from requirements to design.