A Comparative Study of the Software NHPP Based on WeibullExtension Distribution and Flexible Weibull Extension Distribution

摘要

Software testing (debugging) to reduce testing costs is essential for the software reliability. In thisstudy, the comparative problem for the reliability model using the Weibull extension distribution based on thegeneralized order statistics and the flexible Weibull extension distribution which made out efficiency about thesoftware reliability was proposed. The maximum likelihood estimation and bisection iteration method for theestimating parameters were used. In addition, the model selection based on the mean square error andcoefficient of the determination for the efficient model were offered. Analysis of the failure time based on theWeibull extension distribution and the flexible Weibull extension distribution was employed for the proposingreliability model. The Laplace trend test was employed for the assurance property about the failure time. Theresult of this study was obtained that the proposed Weibull extension distribution model than the flexibleWeibull extension model is more efficient in terms of the reliability under a fixed shape parameter condition.Thus, the Weibull extension distribution model can be used as a reliability alternative model. From this study,the software developers must be filled to the growth model by a prior knowledge for the software to identifythe failure modes which can be benefited.