Timing Analysis using the MARTE Profile in the Design of Rail Automation Systems

International audience; For dependable systems as in the railway domain the timing behaviour is considered part of the functional correctness. Thus timing requirements have to be traced and refined through the system and software development phases and validation and verification efforts have to address the timing as well as the pure input/output behaviour. We show how timing can be handled in a UML or SysML based approach to the development of software-intensive railway systems by using the new MARTE profile. Thereby timing becomes fully integrated in the chain of system and software models and may benefit from tool support. Moreover, automated timing analysis may be employed via model transformations which enables the exploration of timing-related issues in various design phases.