Software reliability growth model is one of the fundamental techniques to assess software reliability quantitatively. A number of testing-effort functions for modeling software reliability based on the nonhomogeneous Poisson process (NHPP) have been proposed in the past decades. Although these models are quite helpful for the software testing, we still need to put more testing-effort into softw...

Abstract In this work, we propose a time-variant software reliability model (SRM)which considers the fault detection and highest number of faults in software. The genetic algorithm process is implemented for assessment SRM parameters. proposed works upon non-homogeneous Poisson (NHPP) incorporates dependent failure intensity un-removed error We had considered programmers proficiency, complexity...

This paper introduces a simple index that helps to assess the degree of aging or rejuvenation of repairable systems and non-repairable systems (components). The index ranges from –1 to 1. It is negative for the class of decreasing failure rate distributions and point processes with decreasing ROCOF and is positive for the increasing failure rate distributions and point processes with increasing...

Non-homogeneous Poisson processes are used in a wide range of scientific disciplines, ranging from the environmental sciences to health sciences. Often, central object interest point process is underlying intensity function. Here, we present general model for function non-homogeneous using measure transport. The built flexible bijective mapping that maps simpler reference We enforce bijectivity...

By dealing with interarrival times as exponentially distributed fuzzy random variables, a fuzzy random homogeneous Poisson process and a fuzzy random compound Poisson process are respectively defined. Several theorems on the two processes are provided, respectively.

The trend-renewal-process (TRP)is defined to be a time-transformed renewal process, where the time transformation is given by a trend function λ(·) which is similar to the intensity of a nonhomogeneous Poisson process (NHPP). A nonparametric maximum likelihood estimator of the trend function of a TRP is obtained under the often natural condition that λ(·) is monotone. An algorithm for computing...

Department of Information Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, JAPAN (Received on February 27, 2012, revised on December 04, 2012) Abstract: The non-homogeneous Poisson processes (NHPPs) based software reliability models (SRMs) have gained much popularity in actual software testing phases to assess the software reliabil...

Abstract: In general, downtime of a system can be attributed due to multiple failure categories and repair costs for each failure categories can be different. Many of these failure types are repaired to a state which can be called as bad as old and such repair actions are termed as “minimal repair”. Many system or components are replaced after a certain number of such minimal repair actions. In...