Today's methods for system development have problems mainly in the area of user understanding and in education costs. A simple method for object-based analysis is shown using entity-relationship graphs to model the universe of discourse. The graphs include two couplings between objects in the real w
High-level programming of real-time systems with asynchronous communication
✍ Scribed by NB Šerbedẑija
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 950 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0950-5849
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✦ Synopsis
Programming of process-control systems requires careful treatment of concurrency and real-time constraints. Most existing concepts, however, have synchronization mechanisms built into the communication primitives, degrading process independency and restricting the parallelism they are trying to provide. As a consequence, requirements such as event-driven or time-dependent execution can hardly be fulfilled. A solution is suggested, providing a set of high-level linguistic primitives based on asynchronous process communication. The proposed mechanism clearly distinguishes process synchronization from process communication. Thus concurrent behaviour is expressed in a looser way and process independency is significantly improved. concurrent programming, real-time systems, process control, message passing
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