R.Subburaj and

Abstract—Reliability of Software System can be enhanced through Reliability Growth Testing (RGT) process. Considering the impact of the reliability on success or failure of a software product, it is essential to model RGT process using Software Reliability Growth Models (SRGM). A large number of SRGMs have been proposed by a number of researchers. However the availability of software tools for this purpose is limited. Furthermore four flexible SRGMs have been proposed by Subburaj et al. which seem to fit the software failure data adequately irrespective of wide fluctuations in time between failures, presence or absence of the learning phenomenon of the testing team and Quality of Debugging. A Software Tool that facilitates estimation of parameters of the 4 model has been developed by the authors. The new SRGM tool developed has Graphical User Interface (GUI) and built with JAVA and R Language. This dedicated Open Source Tool (OST) is found to be equally accurate as that of general purpose tool such as MATLAB. This tool will help software reliability professionals to apply the SRGMs in their project easily and get accurate results. Index Terms—goodness of fit, parameter, RGT, R2 metric, SRG