The complexity and size of the average real-time system is increasing rapidly. The development of detailed system designs is vital if the system is to be well understood and to function correctly. In a bid to extract maximum reuse of system software components, and to overcome previous bad software development experiences, many senior system and software engineers are looking to Object Orientation (OO) as the design paradigm for new system development. This paper discusses the suitability of UML, the popular OO modeling language, for defining and designing real-time and embedded systems.
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