Composing specifications using communication

Authors:
Helen Treharne;Steve Schneider;Marchia Bramble
Affiliations:
Department of Computer Science, Royal Holloway, University of London, Egham, Surrey, UK;Department of Computer Science, Royal Holloway, University of London, Egham, Surrey, UK;Department of Computer Science, Royal Holloway, University of London, Egham, Surrey, UK
Venue:
ZB'03 Proceedings of the 3rd international conference on Formal specification and development in Z and B
Year:
2003

Citing 6
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Abstract

This paper develops a case study using the process algebra CSP to enable controlled interaction between B machines. This illustrates how B machines are essential components within a combined communicating system. The development steps used to build the case study are new: they are applications of theoretical results which allow us to focus on the external interface of a combined communicating system, compositionally verify it, and show that it is a refinement of a more abstract specification described in CSP. This allows safety and liveness properties to be established for combinations of communicating B machines.