Hazard Rate Modeling with Effect of Change-Point for Software Reliability Assessment  
Author Shinji Inoue


Co-Author(s) Shiho Hayashida; Shigeru Yamada


Abstract A software hazard rate model is known as one of the important and useful mathematical model for describing the software failure-occurrence phenomenon and conducting quantitative software reliability assessment. In this paper, we discuss software hazard rate modeling with an actual testing-environment, in which the testing-environment changes at change-point. Taking into consideration of the effect of the change in software reliability growth modeling is expected to conduct more accurate software reliability assessment because such approach enables us to conduct more plausible software reliability modeling which reflects the actual testing-environment. Especially in this paper, we develop an exponential software hazard rate model with the effect of the change as a specific model based on our modeling approach. Finally, we show numerical examples for our model and results of model comparisons by using actual data.


Keywords Hazard rate model, Software reliability growth model, Change-point, Testing-environmental coefficient, Gamma distribution, Software reliability assessment
    Article #:  18135
Proceedings of the 18th ISSAT International Conference on Reliability and Quality in Design
July 26-28, 2012 - Boston, Massachusetts, U.S.A.