Fault trees for decision making in systems analysis

Feasibility study of medical isotope production at Sandia National Laboratories

“…Boolean algebra and quantification computer codes like SETS (Worrel, 1985), SlPRA (SNL, 1993), FTAP (Willie, 1978), and IMPORTANCE (Lambert, 1975) were used to identify the cut sets and quantify the frequency of occurrence of IEs or the unavailability of mitigating systems or actions in such fault trees. Graphical representation of the fault trees was done with the help of SEATree (SEA, 1994)…”

Analysis for joint importance of components in a coherent system

“…This index characterizes the rate at which the system reliability changes with respect to changes in the reliability of a given component; it is also defined as MRI (Marginal Reliability Importance). In order to evaluate the importance of different aspects for a system, a set of different importance measures was introduced, such as Structure Importance, Reliability Criticality Importance [2], Monte-Carlo Variance Importance [3]. Other measures of components and minimal cut sets importance in coherent systems were developed by Barlow and Prochan [4,5], Fussell and Vesely [6,7].…”

Reliability importance measures for a health-aware control of drinking water networks

“…The Criticality Reliability Importance also know as Critical Importance Factor (CIF) was introduced by [20] and it is defined as: Definition 2. The criticality reliability importance of component i for system functioning , denoted by I CIF i , is defined as the probability that ith component functions and is critical for the system functioning given that the system is functioning.…”