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Arnold, F. and Belinfante, A.F.E. and Van der Berg, F.I. and Guck, D. and Stoelinga, M.I.A. (2013) DFTCalc: a tool for efficient fault tree analysis (extended version). Technical Report TR-CTIT-13-13, Centre for Telematics and Information Technology, University of Twente, Enschede. ISSN 1381-3625
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Effective risk management is a key to ensure that our nuclear power plants, medical equipment, and power grids are dependable; and is often required by law. Fault Tree Analysis (FTA) is a widely used methodology here, computing important dependability measures like system reliability. This paper presents DFTCalc, a powerful tool for FTA, providing (1) efficient fault tree modelling via compact representations; (2) effective analysis, allowing a wide range of dependability properties to be analysed (3) efficient analysis, via state-of-the-art stochastic techniques; and (4) a flexible and extensible framework, where gates can easily be changed or added. Technically, DFTCalc is realised via stochastic model checking, an innovative technique offering a wide plethora of pow- erful analysis techniques, including aggressive compression techniques to keep the underlying state space small.
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