Performance and Reliability Analysis Using Directed Acyclic Graphs
IEEE Transactions on Software Engineering
Disjoint products and efficient computation of reliability
Operations Research
Dependability Modeling and Evaluation of Software Fault-Tolerant Systems
IEEE Transactions on Computers
Reliable computer systems (2nd ed.): design and evaluation
Reliable computer systems (2nd ed.): design and evaluation
Probability and Statistics with Reliability, Queuing and Computer Science Applications
Probability and Statistics with Reliability, Queuing and Computer Science Applications
Advances in Distributed System Reliability
Advances in Distributed System Reliability
Bounding Signal Probabilities for Testability Measurement Using Conditional Syndromes
IEEE Transactions on Computers
CAREL: Computer Aided Reliability Evaluator for Distributed Computing Networks
IEEE Transactions on Parallel and Distributed Systems
Stochastic fault trees for cross-layer power management of WSN monitoring systems
ETFA'09 Proceedings of the 14th IEEE international conference on Emerging technologies & factory automation
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In order to analyze dependability measures in a fault tolerant system, we generally consider a nonstate space or a state space type model. A fault tree with repeated events (FTRE's) presents an important strategy for the nonstate space model. This paper deals with a conservative assessment to complex fault tree models, henceforth called as CRAFT, to obtain an approximate analysis of the FTRE's. It is a noncutset, direct, bottom-up approach. It uses failure probability or failure rate as input and determines a bound on the probability of occurrence of the $\mbi{TOP}$ event. CRAFT generalizes the concept of a cutting heuristic that obtains the signal probabilities for testability measurement in logic circuits. The method is efficient and solves coherent and noncoherent FTRE's having AND, OR, XOR, and NOT gates. In addition, CRAFT considers $M/N$, priority AND, and two types of functional dependency, namely OR and AND types. Examples such as the $Cm^*$ architecture and a fault-tolerant software based on recovery block concept are used to illustrate the approach. The paper also provides a comparison with approaches such as SHARPE, HARP, and FTC.Index Terms驴Coherent and noncoherent structures, conservative assessment, cutting heuristic, dependability measure, fault tree analysis, fault tolerant system, functional dependency, priority AND, signal probability.