International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
In this paper, the authors present variable Fault Removal Efficiency (FRE) in NHPP software reliability growth model. Various models have been developed with constant FRE. However, during testing phase it has been found that FRE depends on testing time as detection and removal of fault consume considerable length of time. Proposed model considered FRE as function of time and incorporates exponential order of time component. Parameters are estimated by MLM and goodness of fit is performed.