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A hierarchical method for the reduction of temporal expressions in Pandora

Walker, Martin; Papadopoulos, Yiannis

Authors

Martin Walker

Abstract

Fault Tree Analysis (FTA) is a popular safety analysis technique used to determine the logical combination of events needed to cause a particular system failure. However, FTA is purely combinatorial and cannot analyse the effects of sequences of events. A recent technique named Pandora was proposed as one method of overcoming this limitation by introducing a temporal logic to fault trees, but the resulting expressions are generally more complex. In this paper, we propose a hierarchical method for reducing these expressions to simpler logical equivalents, which can be more easily understood and thus provide a better view of the system failure behaviour.

Publication Date Dec 31, 2010
Journal ACM International Conference Proceeding Series
Pages 43076
ISBN 9781605589169
Institution Citation Papadopoulos, Y., & Walker, M. (2010). A hierarchical method for the reduction of temporal expressions in Pandora. doi:10.1145/1772630.1772634
DOI https://doi.org/10.1145/1772630.1772634