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Published in:
2009 | OriginalPaper | Chapter
Probabilistic Failure Propagation and Transformation Analysis
Authors : Xiaocheng Ge, Richard F. Paige, John A. McDermid
Published in: Computer Safety, Reliability, and Security
Publisher: Springer Berlin Heidelberg
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A key concern in safety engineering is understanding the overall emergent failure behaviour of a system, i.e., behaviour exhibited by the system that is outside its specification of acceptable behaviour. A system can exhibit failure behaviour in many ways, including that from failures of individual or a small number of components. It is important for safety engineers to understand how
system
failure behaviour relates to failures exhibited by individual components. In this paper, we propose a safety analysis technique,
failure propagation and transformation analysis
(FPTA), which automatically and quantitatively analyses failures based on a model of failure logic. The technique integrates previous work on automated failure analysis with probabilistic model checking supported by the PRISM tool. We demonstrate the technique and tool on a small, yet realistic safety-related application.