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Bayes predictive analysis of a fundamental software reliability model

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1 Author(s)
A. Csenki ; Dept. of Comput. Sci. & Appl. Math., Aston Univ., Birmingham, UK

The concepts of Bayes prediction analysis are used to obtain predictive distributions of the next time to failure of software when its past failure behavior is known. The technique is applied to the Jelinski-Moranda software-reliability model, which in turn can show an improved predictive performance for some data sets even when compared with some more sophisticated software-reliability models. A Bayes software-reliability model is presented which can be applied to obtain the next time to failure PDF (probability distribution function) and CDF (cumulative distribution function) for all testing protocols. The number of initial faults and the per-fault failure rate are assumed to be s -independent and Poisson and gamma distributed respectively. For certain data sets, the technique yields better predictions than some alternative methods if the frequential likelihood and U-plot criteria are adopted

Published in:

IEEE Transactions on Reliability  (Volume:39 ,  Issue: 2 )