18 June 2014 Designing for resilience
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Abstract
The motivation for this work comes from a desire to improve resilience of mission critical cyber enabled systems including those used in critical infrastructure domains such as cyber, power, water, fuel, financial, healthcare, agriculture, and manufacturing. Resilience can be defined as the ability of a system to persistently meet its performance requirements despite the occurrence of adverse events. Characterizing the resilience of a system requires a clear definition of the performance requirements of the system of interest and an ability to quantify the impact on performance by the adverse events of concern. A quantitative characterization of system resilience allows the resilience requirements to be included in the system design criteria. Resilience requirements of a system are derived from the service level agreements (SLAs), measures of effectiveness (MOEs), and measures of performance (MOPs) of the services or missions supported by the system. This paper describes a methodology for designing resilient systems. The components of the methodology include resilience characterization for threat models associated with various exposure modes, requirements mapping, subsystem ranking based on criticality, and selective implementation of mitigations to improve system resilience to a desired level.
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Anurag Dwivedi, Anurag Dwivedi, } "Designing for resilience", Proc. SPIE 9097, Cyber Sensing 2014, 90970C (18 June 2014); doi: 10.1117/12.2054389; https://doi.org/10.1117/12.2054389
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