Towards a Base Model for UML and OCL Verification

Modelling languages such as UML and OCL are more and more used in early stages of system design. These languages o er a huge set of constructs. As a consequence, existing veri cation engines only support a restricted subset of them. In this work, we propose an approach using model transformations to unify di erent description means within a so called base model. In the course of this transformation, complex language constructs are expressed with a small subset of so-called core elements. This simpli cation enables to interface with a wide range of veri cation engines with complementary strengths and weaknesses. Our aim is that, guided by a structural analysis of the base model, the developer can choose the most promising veri cation engine.