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Integrating safety analysis into formal specification of dependable systems

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1 Author(s)
Troubitsyna, E. ; Dept. of Comput. Sci., Abo Akademi Univ., Turku, Finland

This paper presents and validates a novel approach to a formal specification of software for dependable systems. The approach incorporates results of statecharts and failure mode and effect analysis (FMEA) in the development of formal specifications of fail-safe systems. We use the action system formalism as our specification framework. Within the framework we define a general model of a safety-critical fail-safe system. Statecharts facilitate construction of a formal specification by structuring informal functional requirements and formalizing safety requirements resulted from FMEA. The approach is validated by a case study - a derivation of formal specification of a conveyor system.

Published in:

Parallel and Distributed Processing Symposium, 2003. Proceedings. International

Date of Conference:

22-26 April 2003