Using Model Customization for Variability Management in Service Compositions
Hadaytullah, Kai Koskimies, Tarja Systä · 2009
Service oriented architecture (SOA) is currently supported by an infrastructure that facilitates model driven development, but reuse issues have received less attention. A key problem in reuse is variability management: how to support the specification and usage of the variation points of the system. In this paper, we propose an approach for model-level variability management, assuming UML activity diagrams as the notation for service composition models in SOA. The approach is based on specifying variation points using so-called specialization patterns, which have been originally developed to support task-driven specialization of application frameworks. We demonstrate the approach with a prototype tool and an example. The approach leads to a guided model customization process focusing on the variation points, making it easy to produce a variant of a basic model.