Refactoring Real-time Specifications

Authors:
Graeme Smith;Tim McComb
Affiliations:
School of Information Technology and Electrical Engineering, The University of Queensland, Australia;ARC Centre of Excellence in Bioinformatics, Institute for Molecular Biology, The University of Queensland, Australia
Venue:
Electronic Notes in Theoretical Computer Science (ENTCS)
Year:
2008

Citing 10
Cited 0

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Using Z: specification, refinement, and proof
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Compositional class refinement in object-z

FM'06 Proceedings of the 14th international conference on Formal Methods

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Abstract

This paper presents an approach to refactoring real-time specifications written using Real-Time Object-Z. This allows implementation components such as clocks and sensors, not necessarily present in an initial abstract specification, to be introduced via a sequence of refinement steps. The approach, based on similar work for Object-Z, is enabled by a semantics of object instantiation and operation synchronisation introduced in this paper. Means of refining synchronising operations to reflect the timing and causality constraints of an implementation are also presented.