Effort based software reliability model with fault reduction factor, change point and imperfect debugging

Abstract

The growing need of software’s in almost every sphere of life has increased the demand of producing error free software’s. But producing high quality software needs resources (effort and time). Numerous time and effort based models were developed in literature with the assumptions of imperfect debugging and change point. Where imperfect debugging is the inefficiency of testing team to remove the faults perfectly due to the insufficient understanding of the software and change point as the time where change in fault detection takes place due to change in various strategies. An important attribute having an impact on software reliability is fault reduction factor (FRF) which is defined as the total number of removed faults in proportion to the experienced failures. In this paper, we have proposed a generalized framework to develop effort based software reliability model with FRF, change point and error generation. For the purpose of model validation and parameter estimation, two real datasets have been used.