An approach to communicating process modeling of MARTE

Precisely describing complicate interaction process is still an open problem in MARTE(Modeling and Analysis of Realtime Embedded System). In this paper, we propose an approach to modeling interaction behaviors to enhance MARTE modeling ability. MARTE is published by OMG(Object Management Group) in Aug, 2010 as a standard modeling language for modeling real time and embedded system. Our approach is based on timed CSP(Communicating Sequential Processes). To describe the multiform time structure in MARTE, we make an extension to timed CSP. The syntax and semantics of the communicating process specification are given and also the laws, the trace model and the failures model are defined. One of the main advantages of our method is to help people to modeling the complicate interaction process with process algebra, thus to simplify the modeling and verification of the interaction and concurrent behaviors in real-time and embedded systems between different processes. The approach is applied to model and analyze a Train Over Speed Protection System for Shanghai Bell Company.