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Lookup NU author(s): Dr Alexei Iliasov, Emeritus Professor Alexander RomanovskyORCiD, Dr Fernando Dotti
The two dependability means considered in this paper are rigorous design and fault tolerance. It can be complex to rigorously design some classes of systems, including fault tolerant ones, therefore appropriate abstractions are needed to better support system modelling and analysis. The abstraction proposed in this paper for this purpose is the notion of operation mode. Modes are formalised and their relation to a state-based formalism in a refinement approach is established. The use of modes for fault tolerant systems is then discussed and a case study presented. Using modes in state-based modelling allows us to improve system structuring, the elicitation of system assumptions and expected functionality, as well as requirement traceability.
Author(s): Iliasov A, Romanovsky A, Dotti FL
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: Proceedings of the Fourth Latin-American Symposium on Dependable Computing (LADC)
Year of Conference: 2009
Pages: 81-88
Date deposited: 24/09/2010
Publisher: IEEE Computer Society
URL: http://dx.doi.org/10.1109/LADC.2009.11
DOI: 10.1109/LADC.2009.11
Library holdings: Search Newcastle University Library for this item
ISBN: 9781424446780
