Constructive model-based analysis for safety assessment
Autor: | Augusto Sampaio, Felipe Ferri, Alexandre Mota, Adriano Gomes, Edson Watanabe |
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Rok vydání: | 2012 |
Předmět: | |
Zdroj: | International Journal on Software Tools for Technology Transfer. 14:673-702 |
ISSN: | 1433-2787 1433-2779 |
DOI: | 10.1007/s10009-012-0238-x |
Popis: | The aerospace industry still uses fault trees to perform reliability analysis. This is because fault-tree modeling and analysis (FTA) seems easier to practical engineers when compared with Markov models, even though FTA provides a weaker form of analysis. In this paper, we propose an automatic strategy for generating Markov-based models and corresponding analysis formulations, according to ARP 4761, directly from Simulink diagrams annotated with failure information. The generated Markov-based models are expressed in the formal language PRISM, and the analysis is carried out by the PRISM model checker. The strategy is compositional and based on a comprehensive set of translation rules from Simulink to PRISM. We briefly address soundness and completeness of the rules and, to illustrate the application of the strategy, we apply it to a classical avionics case study: an actuator control system. |
Databáze: | OpenAIRE |
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