Please use this identifier to cite or link to this item: https://doi.org/10.1080/07408170500494574
Title: Performance distribution of a fault-tolerant system in the presence of failure correlation
Authors: Levitin, G.
Xie, M. 
Issue Date: Jun-2006
Source: Levitin, G., Xie, M. (2006-06). Performance distribution of a fault-tolerant system in the presence of failure correlation. IIE Transactions (Institute of Industrial Engineers) 38 (6) : 499-509. ScholarBank@NUS Repository. https://doi.org/10.1080/07408170500494574
Abstract: This paper considers software systems consisting of fault-tolerant components built from functionally equivalent but independently developed modules (versions) characterized by different reliability and execution times. The components are designed using either the N-version programming method or the recovery block scheme. In our general model, we also allow the number of versions that can run simultaneously to be limited because of hardware or computation time constraints. An analytical algorithm and a numerical procedure to evaluate system execution-time distributions are presented. This algorithm takes into account the positive correlation among failures in different versions by introducing common-cause failures (mutually exclusive and independent common causes are considered). Illustrative examples are presented. © 2006 "IIE".
Source Title: IIE Transactions (Institute of Industrial Engineers)
URI: http://scholarbank.nus.edu.sg/handle/10635/63254
ISSN: 0740817X
DOI: 10.1080/07408170500494574
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