From ODP viewpoint consistency to Integrated Formal Methods

Questions asked by research into ODP viewpoint consistency led to fundamental questions in refinement and contributed greatly to insights and interest in Integrated Formal Methods; research in those areas is still ongoing, while the answers provided remain largely unincorporated into model driven development. In this paper we survey some of the work done on consistency checking for multiple viewpoints, and subsequent work on generalised notions of refinement, which in turn led to work on integrations of state-based and behavioural formal methods.