Proposition d'architecture et de processus pour la résilience des systèmes : application aux systèmes critiques à longue durée de vie

Abstract : The long operational lifecycle of systems and the uncertainty of the environment are a great challenge to engineers. Resilience enhances reliability and safety to take into account the unforeseeable situations, without precedent. The goal is to understand the situation to avoid an accident. The quality of the human-machine interaction is the key issue to achieve this goal. The state of the art explains that sociotechnical systems resilience completes safety approach. Implementaing resilience impacts both system architecture and systems engineering processes. At the end, implementing resilience impacts human-computer interaction, user centred design as well as architecture models. We created the design pattern “to monitor and alert” applied to the function “to avoid” of the resilience. Its goal is to give to the operators the capacity to understand the dynamics of the system, to control at sight vis-a-vis unforeseeable situations, in order to avoid an accident. The proposal contents the processes to be implemented to contribute to the resilience of long lifecycle critical systems. The application to the railway domain is based on the analysis of three accident technical reports. It is declined, on the processes to be implemented to contribute to the resilience of a system, on the design pattern “to monitor and alert” for the architecture of a resilient system and to propose improvements of the user interface. Research forecasts supplement the report.
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Jean-René Ruault. Proposition d'architecture et de processus pour la résilience des systèmes : application aux systèmes critiques à longue durée de vie. Biomécanique [physics.med-ph]. Université de Valenciennes et du Hainaut-Cambresis, 2015. Français. ⟨NNT : 2015VALE0025⟩. ⟨tel-01273751⟩

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