Update on Common-Cause Failure Experience and Mitigation Practices

An Integrated Framework for Risk Assessment of Safety-related Digital Instrumentation and Control Systems in Nuclear Power Plants: Methodology Refinement and Exploration

“…Among these, software diversity evaluates diversity based on different algorithms, logic, program architecture, timing and/or order of execution, operating systems, and computer languages. ORNL/TM-2013/563 evaluates diversity based on diverse inputs for data diversity, separate developments, diverse development teams, diverse requirements or specifications for design diversity, and functional diversity [32].…”

Taxonomy for Common-Cause Failure Vulnerability and Mitigation

“…In addition, there are no readily available models and metrics to develop systematic methods, quantifiable measures, and objective criteria for evaluating CCF mitigation approaches. This research began with an analysis of diversity approaches and experience from the international nuclear power industry, as well as other industries and organizations, capturing expert knowledge and lessons learned, determining best practices, and evaluating the remaining knowledge gaps [2]. The primary goal of the current stage of research is to establish a taxonomy to provide the basis for characterizing and analyzing CCF vulnerability and for assessing the suitability for various mitigation strategies.…”

Identification of Modeling Approaches To Support Common-Cause Failure Analysis

“…The starting point for this research involved investigating diversity approaches and experience from the international nuclear power industry as well as other industries and organizations, capturing expert knowledge and lessons learned, determining best practices, and evaluating the knowledge gaps that remain [2]. Subsequently, the research established a taxonomy to provide the fundamental basis for characterizing and analyzing CCF vulnerability and for assessing the suitability for various mitigation strategies [3].…”