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A success (risk) measure of guaranteed availability is proposed. Using a genetic system model, the authors describe the measure and study the effects of the guaranteed level and the observation period on it. Furthermore, they introduce a numerical approach for continuous-time Markov chain models which allows component-level modeling, Coxian failure and repair distributions, time-dependent failu
success measure; risk measure; guaranteed availability; numerical evaluation; continuous-time Markov chain models; component-level modeling; Coxian failure and repair distributions; time-dependent failure and repair rates; deferred repair; nondeferred repair; fault-tolerant database computer system; fault tolerant computing; function approximation; Markov processes; numerical methods.

A. Tantawi and A. Goyal, "A Measure of Guaranteed Availability and its Numerical Evaluation," in IEEE Transactions on Computers, vol. 37, no. , pp. 25-32, 1988.
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