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Software Reliability Measurement and Assessment with Stochastic Differential Equations

Shigeru YAMADA, Mitsuhiro KIMURA, Hiroaki TANAKA, Shunji OSAKI

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Summary :

In this paper, we propose a plausible software reliability growth model by applying a mathematical technique of stochastic differential equations. First, we extend a basic differential equation describing the average behavior of software fault-detection processes during the testing phase to a stochastic differential equation of ItÔ type, and derive a probability distribution of its solution processes. Second, we obtain several software reliability measures from the probability distribution. Finally, applying a method of maximum-likelihood we estimate unknown parameters in our model by using available data in the actual software testing procedures, and numerically show the stochastic behavior of the number of faults remaining in the software system. Further, the model is compared among the existing software reliability growth models in terms of goodness-of-fit.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E77-A No.1 pp.109-116
Publication Date
1994/01/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Section on Reliability)
Category
Software Reliability

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