Abstract
Crosscutting concerns usually affect large portions of requirements models, compromising their modularity and, consequently, their evolution. Models built using the Problem Frames (PF) approach are no exception. PF models can be better modularized by integrating aspect-oriented concepts, as these provide mechanisms to systematically deal with crosscutting model elements. This poster outlines a hybrid approach for integrating aspects and PF, supporting aspects representation through pattern, and modelling composition of aspects. This improves the definition of PF aspectual concepts, as well as their composition process.