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Continuous and multidimensional assessment of resilience based on functionality analysis for interconnected systems

机译:基于互联系统功能分析的功能分析,连续和多维评估

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摘要

The increasing number of disruptions to critical infrastructure, like natural disasters, terrorist attacks or internal failure is today a major problem of society. Concern is even greater when considering the interconnected nature of critical infrastructure, which might lead to failure propagation, causing domino and cascade effects. To mitigate such outcomes, critical infrastructure must recover its capacity to function with regard to several criteria. Stakeholders must therefore analyse and improve the resilience of critical infrastructure before any disruption occurs, and base this analysis on different models so as to guarantee society's vital needs. Current resilience assessment methods are mainly oriented toward the context of a single system, thus narrowing their criteria metrics, limiting flexibility and adaptation to other contexts and overlooking the interconnected nature of systems. This article introduces a new tool-equipped approach that makes it possible to define a model to evaluate the functionalities of interconnected systems. The model is then used to assess the resilience of these systems based on simple and generic criteria that can be extended and adapted. Several assertions related to the concept of resilience and some resilience indicators are also introduced. A case study provides the validation performed by experts from several domains.
机译:越来越多的对关键基础设施的中断,如自然灾害,恐怖主义攻击或内部失败是今天的一个主要问题。在考虑关键基础设施的互联性质时,甚至更大,这可能导致故障传播,导致多米诺骨牌和级联效果。为了缓解此类结果,关键基础设施必须恢复其在若干标准上运作的能力。因此,在发生任何破坏之前,利益相关者必须分析和改善关键基础设施的恢复力,并将这种分析基于不同模型的基础,以保证社会的重要需求。目前的弹性评估方法主要针对单个系统的背景,从而缩小其标准度量,限制了对其他环境的灵活性和调整,并忽略了系统的互连性质。本文介绍了一种新的配备工具的方法,使得可以定义模型以评估互连系统的功能。然后,该模型用于基于可以扩展和调整的简单和通用标准来评估这些系统的弹性。还介绍了与恢复力概念和一些弹性指标相关的几种断言。案例研究提供了来自几个域的专家执行的验证。

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