Analysis of Software Reliability Growth Model under Two Types of Fault and Warranty Cost

The reliability growth is a major quality attribute for the assessment of maintainability and capability of the software. In order to increase the software reliability, warranty is provided by the manufacturer at the time of software release. The present investigation deals with the analysis of software reliability growth model (SRGM) based on non-homogenous poisson process (NHPP) under two types of faults and warranty cost. Software testing is considered into two phases (i) testing phase, and (ii) operational/warranty phase for the prediction of software reliability. To find the accurate total expected delivery cost including with warranty and penalty cost of the software system, a warranty cost model for the software system is proposed in this paper. To validate the analytical results, numerical results are performed using MATLAB software.