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Abstract

Mode transition in any inappropriate mode can be a common cause of any mishap in a complex health-care system. This paper presents an approach for formalizing and reasoning about optimal mode transition in a health-care system that uses several operating modes in various operating states. Modes are formalized and their relation to a state-based formalism is established through a refinement approach. The efficiency of this approach is presented by formalizing an ideal operating mode transition of a cardiac pacemaker case study. An incremental approach is used to develop the system and its detailed design is verified through a series of refinements. The consequence of this approach is to improve system structuring, elicitation of system assumptions and expected functionality, as well as requirement traceability using modes in state-based modeling. Models are expressed in Event B modeling language and validated by a model checker tool: ProB.

Keywords

Abstract model Event-B Proof-based development Refinement Modes Pacemaker 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Dominique Méry
    • 1
  • Neeraj Kumar Singh
    • 2
  1. 1.Université de Lorraine, LORIAVandœuvre-lès-NancyFrance
  2. 2.Department of Computer ScienceUniversity of YorkUnited Kingdom

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