NDLI: OBDD-based evaluation of reliability and importance measures for multistate systems subject to imperfect fault coverage

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OBDD-based evaluation of reliability and importance measures for multistate systems subject to imperfect fault coverage

Content Provider	IEEE Xplore Digital Library
Author	Yung-Ruei Chang Amari, S.V. Sy-Yen Kuo
Copyright Year	2004
Abstract	Algorithms for evaluating the reliability of a complex system such as a multistate fault-tolerant computer system have become more important. They are designed to obtain the complete results quickly and accurately even when there exist a number of dependencies such as shared loads (reconfiguration), degradation, and common-cause failures. This paper presents an efficient method based on ordered binary decision diagram (OBDD) for evaluating the multistate system reliability and the Griffith's importance measures which can be regarded as the importance of a system-component state of a multistate system subject to imperfect fault-coverage with various performance requirements. This method combined with the conditional probability methods can handle the dependencies among the combinatorial performance requirements of system modules and find solutions for multistate imperfect coverage model. The main advantage of the method is that its time complexity is equivalent to that of the methods for perfect coverage model and it is very helpful for the optimal design of a multistate fault-tolerant system.
Sponsorship	IEEE Computer Society
Starting Page	336
Ending Page	347
Page Count	12
File Size	1226522
File Format	PDF
ISSN	15455971
Volume Number	2
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power generation Availability Fault tolerant systems Degradation Power system reliability Data structures Boolean functions Power system modeling Nuclear power generation Fission reactors importance measure. Index Terms- Reliability multistate system OBDD fault-coverage
Content Type	Text
Resource Type	Article
Subject	Computer Science Electrical and Electronic Engineering

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