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Changing System Interfaces Consistently: A New Refinement Strategy for CSP||B

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Integrated Formal Methods (IFM 2009)

Part of the book series: Lecture Notes in Computer Science ((LNPSE,volume 5423))

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Abstract

This paper introduces action refinement in the context of CSP||B. Our motivation to include this notion of refinement within the CSP||B framework is the desire to increase flexibility in the refinement process. We introduce the ability to change the events of a CSP process and the B machines when refining a system. Notions of refinement based on traces and on traces/divergences are introduced in which abstract events are refined by sequences of concrete events. A complementary notion of refinement between B machines is also introduced, yielding compositionality results for refinement of CSP||B controlled components. The paper also introduces a notion of I/O refinement into our action refinement framework.

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Author information

Authors and Affiliations

  1. Department of Computing, University of Surrey, UK

    Steve Schneider & Helen Treharne

Authors
  1. Steve Schneider
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  2. Helen Treharne
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Editors and Affiliations

  1. Institut für Informatik, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany

    Michael Leuschel

  2. Fakultät für Elektrotechnik, Informatik und Mathematik, Universität Paderborn, Warburger Straße 100, 33098, Paderborn, Germany

    Heike Wehrheim

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Schneider, S., Treharne, H. (2009). Changing System Interfaces Consistently: A New Refinement Strategy for CSP||B. In: Leuschel, M., Wehrheim, H. (eds) Integrated Formal Methods. IFM 2009. Lecture Notes in Computer Science, vol 5423. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-00255-7_8

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  • DOI: https://doi.org/10.1007/978-3-642-00255-7_8

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-00254-0

  • Online ISBN: 978-3-642-00255-7

  • eBook Packages: Computer ScienceComputer Science (R0)

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