A Language Support Environment for Complex Distributed Real-Time Applications

Engineering of complex distributed real-time applications is one of the hardest tasks faced by the software profession today. All aspects of the process, from design to implementation, are made more di-cult by the interaction of behavioral and platform constraints. Providing tools for this task is likewise not without major challenges. In this paper, we discuss atool suite at New Jersey Institute of Technology's Real-Time Computing Lab which supports the development of complex distributed real-time applications in a suitable high-level language (CRL). The suite's component tools include a compiler, a transformeroptimizer, an allocator-migrator, schedulability analyzers, a debugger-monitor, a kernel, and a (simulated) network manager. The overall engineering approach supported by the suite is to provide as simple and natural an integrated development paradigm as possible. The suite tools address complexity due to distribution, scheduling, allocation and other sources in an integrated manner (largely) transparenttothe developer. To re ect the needs of propagation of functional and non-functional requirements throughout the development process, a number of robust code trans