Unified framework for developing Two Dimensional software reliability growth models with change point

Abstract

In order to assure software quality and assess software reliability, many software reliability growth models (SRGMs) have been proposed. In One-Dimension Software Reliability Growth Models researcher used one factor such as Testing-Time, Testing-Effort or Coverage, etc for designing the model but in Two-Dimensional software reliability growth model, process depends on two-types of reliability growth factors like: Testing-time and Testing-effort or Testing-time and Testing-Coverage or any combination between factors. Alsozin more realistic situations, the failure distribution can be affected by many factors, such as the running environment, testing strategy and resource allocation. Once these factors are changed during testing phase, it could result in failure intensity function that increases or decreases non-monotonically and the time point corresponding to abrupt fluctuations is called change point. In this paper, we discuss generalized framework for Two-Dimensional SRGM with change-point for software reliability assessment. The models developed have been validated on real data set.