From Behavioral Specification to Axiomatic Description of Real-Time Reactive Systems

Formal verification of time-dependent properties is crucial in the development of real-time reactive systems for safety-critical applications. Systems modeled in UML (Unified Modeling Language) result in graphic descriptions of the static structure and dynamic behavior of a system and its components. Generating a formal specification from the UML models supports rigorous techniques for validation and verification. The proposed approach involves deriving an axiomatic description of a system from the formal design specifications. We use a specification method based on an object-oriented formalism with well-defined semantics, as the foundation for a verification methodology within the PVS (Prototype Verification System) environment.