Ideal mode selection of a cardiac pacing system

Authors:
Dominique Méry;Neeraj Kumar Singh
Affiliations:
Université de Lorraine, LORIA, Vandœuvre-lès-Nancy, France;Department of Computer Science, University of York, United Kingdom
Venue:
DHM'13 Proceedings of the 4th International conference on Digital Human Modeling and Applications in Health, Safety, Ergonomics, and Risk Management: healthcare and safety of the environment and transport - Volume Part I
Year:
2013

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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.