A logical model for quantification of occupational risk
Ioannis A. Papazoglou and
Ben J.M. Ale
Reliability Engineering and System Safety, 2007, vol. 92, issue 6, 785-803
Abstract:
Functional block diagrams (FBDs) and their equivalent event trees are introduced as logical models in the quantification of occupational risks. Although a FBD is similar to an influence diagram or a belief network it provides a framework for introduction in a compact form of the logic of the model through the partition of the paths of the equivalent event tree. This is achieved by consideration of an overall event which has as outcomes the outmost consequences defining the risk under analysis. This event is decomposed into simpler events the outcome space of which is partitioned into subsets corresponding to the outcomes of the initial joint event. The simpler events can be further decomposed into simpler events creating a hierarchy where the events in a given level (parents) are decomposed to a number of simpler events (children) in the next level of the hierarchy. The partitioning of the outcome space is transferred from level to level through logical relationships corresponding to the logic of the model.
Keywords: Functional block diagrams; Event trees; Influence diagrams; Belief networks; Logic models; Occupational risk; Quantified risk; Fall from ladders (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (9)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:92:y:2007:i:6:p:785-803
DOI: 10.1016/j.ress.2006.04.017
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