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Resilience assessment as a foundation for systems-of-systems safety evaluation: Application to an economic infrastructure

Authors
  • Koulou, Aicha
  • El Hami, Norelislam
  • Ed-daoui, Ilyas
  • El Hami, Abdelkhalak
  • ITMI, MHAMED
  • Hmina, Nabil
  • Mazri, Tomader
Publication Date
Jun 01, 2019
Source
HAL
Keywords
Language
English
License
Unknown
External links

Abstract

In this paper, the authors propose two complementary approaches in an attempt to contribute to systems-of-systems (SoS) safety evaluation through resilience assessment. The first approach is a risk monitoring design, it is conceived to monitor, evaluate and analyze risks that represent destabilizations’ catalyzers. The second one is a structural analysis that begins with the estimation of criticality and frailty levels which leads to the calculation of failure impact and susceptibility measures of a component system on/to the SoS performance and process continuity. The combination of these approaches helps to assess SoS resilience through building a futurist, quantitative and anticipative perspective to evaluate the potential risks, their influences and impacts on SoS structure. Accordingly, this embraces a step towards safety forecast, evaluation and enhancement. A case study of a real-based economic infrastructure of a geographic area in France approached as a SoS model, is provided to experiment the proposition. The outcome of the presented approach’s application shows that: (1) the use of the risk’s monitoring dashboard helps to qualitatively illustrate risks striking the SoS or could possibly affect it in the future; (2) the structural analysis evaluates the impact of a component system’s failure on the overall performance and efficiency of the SoS embracing it and vice versa; (3) the proposed approach could be used for anticipative and preventive reasons.

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