USER CONTEXT MODELS - A Framework to Ease Software Formal Verifications

Several works emphasize the difficulties of software verification applied to embedded systems. In industrial development practices, the verification process takes a great part of the development time and budget to satisfy quality and reliability. In past years, formal verification techniques and tools were widely developed and used by the research community. However, the use of formal verification at industrial scale still difficult, expensive and requires lot of time. This is due to the size and the complexity of manipulated models, but also, to the important gap between requirement models manipulated by different stackholders and formal models required by existing verification tools. In this paper, we fill this gap by providing the UCM framework to automatically generate formal models used by formal verification tools. At this stage of our work, we generate behavior models of environment actors interacting with the system directly from an extended form of use cases. These behavioral models can be composed directly with the system automata to be verified using existing model checking tools.