Journal of Parallel and Distributed Computing - Problems in parallel and distributed computing: Solutions based on evolutionary paradigms
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Deadline handling is a fundamental part of real-time computing but has been practiced in ad hoc forms for decades. A general framework for systematic deadline handling in real-time distributed computer systems is proposed in this paper. The notions of hard deadlines and hard-real-time program components are discussed along with the advantages of a hard-real-time component based construction approach.To present approaches for implementation of systematic deadline handling in concrete forms, we use the time-triggered message triggered object (TMO) network structuring as the basic design framework in which deadline handling approaches are incorporated. The TM0 structuring scheme is a general-style component structuring scheme and supports design of all types of components including hard-real-time objects and non-real-time objects within one general structure. An augmentation of the TM0 structure with statistical performance indicators is also proposed.