Domain-driven reuse of software design models

This chapter presents an approach to software development where model driven development and software reuse facilities are combined in a natural way. The basis for all of this is a semiformal requirements language RSL. The requirements in RSL consist of use cases refined by scenarios in a simple controlled natural language and the domain vocabulary containing the domain concepts. The chapter shows how model transformations building a platform independent model (PIM) can be applied directly to the requirements specified in RSL by domain experts. Further development of the software case (PSM, code) is also supported by transformations, which in addition ensure a rich traceability within the software case. The reuse support relies on a similarity based comparison of requirements for software cases. If a similar part is found in an existing software case, a traceability link based slice of the solution can be merged into the new case. The implementation of the approach is briefly sketched.