Constructive model-based analysis for safety assessment

Autor: Augusto Sampaio, Felipe Ferri, Alexandre Mota, Adriano Gomes, Edson Watanabe
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