Cyber-susiliency index : a comprehensive resiliency-sustainability-cybersecurity index for healthcare supply chain networks

Resilience, sustainability, and cyber-security are three measures in supply chains that define how robustly supply chains perform without disruption. Although these three measures can each be assessed separately and give us some idea of a supply chain's capability, a combined measure of all three can provide a more holistic picture and comprehensive understanding of the system. To our knowledge, no attempt has been undertaken to formulate a combined measure. We utilized a data fusion technique called the Dempster Shafer (D-S) theory and developed a comprehensive assessment framework considering all three dimensions of resilience, sustainability, and cyber-security. Further, we combine these three measures into a single measure called the cyber-susiliency index. The proposed framework is applied to a healthcare supply chain and shows reasonable results. Yager's recursive rule of combination further validates the D-S theory application. An index value is developed on a scale from 0 to 1, representing a numerical measure of the organization's cyber-susiliency. The cyber-susiliency index for the healthcare supply case was calculated at 0.62 on a 1 to 0 scale.