Bivariate Software Reliability Modeling with Uncertainty of Testing-Environment Change  
Author Shinji Inoue


Co-Author(s) Jun Ikeda; Shigeru Yamada


Abstract We observe a phenomenon that probabilistic and statistical nature of software failure-occurrence timeinterval changes notably in an actual testing-phase in a software development process. Testing-time when such phenomenon is observed is ordinarily called changepoint. This phenomenon is treated as one of the factors affecting the accuracy of the reliability assessment based on a software reliability growth model. In this paper, we develop a bivariate SRGM considering with uncertainty of testing-environment, in which the reliability growth factor consists of testing-time and testing-effort factors. Finally we show numerical examples of our model by using actual data.


Keywords Change-point, Bivariate software reliability growth model, Software reliability assessment, Nonhomogeneous Poisson process, Testing-environmental function
    Article #:  18132
Proceedings of the 18th ISSAT International Conference on Reliability and Quality in Design
July 26-28, 2012 - Boston, Massachusetts, U.S.A.