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Design and Assessment Methodology for System Resilience Metrics

机译:系统弹性指标的设计和评估方法

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摘要

By providing objective measures, resilience metrics (RMs) help planners, designers, and decisionmakers to have a grasp of the resilience status of a system. Conceptual frameworks establish a sound basis for RM development. However, a significant challenge that has yet to be addressed is the assessment of the validity of RMs, whether they reflect all abilities of a resilient system, and whether or not they overrate/underrate these abilities. This article covers this gap by introducing a methodology that can show the validity of an RM against its conceptual framework. This methodology combines experimental design methods and statistical analysis techniques that provide an insight into the RM's quality. We also propose a new metric that can be used for general systems. The analysis of the proposed metric using the presented methodology shows that this metric is a better indicator of the system's abilities compared to the existing metrics.
机译:通过提供客观的度量,弹性指标(RM)可以帮助计划者,设计人员和决策者掌握系统的弹性状态。概念框架为RM开发奠定了良好的基础。但是,尚需解决的重大挑战是评估RM的有效性,它们是否反映了弹性系统的所有功能以及它们是否高估/低估了这些功能。本文通过介绍一种可以证明RM在其概念框架上的有效性的方法来弥补这一空白。此方法论结合了实验设计方法和统计分析技术,可深入了解RM的质量。我们还提出了可用于一般系统的新指标。使用现有方法对建议度量进行的分析表明,与现有度量相比,该度量是系统功能的更好指示。

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