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arXiv · 2312.00171

Extending Rely-Guarantee thinking to handle Real-Time Scheduling

Cliff B. Jones·Alan Burns
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Abstract

The reference point for developing any artefact is its specification; to develop software formally, a formal specification is required. For sequential programs, pre and post conditions (together with abstract objects) suffice; rely and guarantee conditions extend the scope of formal development approaches to tackle concurrency. In addition, real-time systems need ways of both requiring progress and relating that progress to some notion of time. This paper extends rely-guarantee ideas to cope with specifications of -- and assumptions about -- real-time schedulers. Furthermore it shows how the approach helps identify and specify fault-tolerance aspects of such schedulers by systematically challenging the assumptions.

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Cliff B. Jones, Alan Burns. 2023-11-30. Extending Rely-Guarantee thinking to handle Real-Time Scheduling. https://doi.org/10.1007/s10703-023-00441-y

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