Thillaikarasi Muthusamy and Seetharaman.K, Annamalai University, India

Test case prioritization schedule test cases in an order that increases the success in achieving some performance target. The most important target is ,at what rate the fault is detected. Test cases should run in an order that increases the opportunity of fault exposure and as well detecting the most rigorous faults, most primitively in its testing life cycle. Test case prioritization techniques have proved to be advantageous for improving regression testing activities. whereas code coverage based prioritization are being studied by most scholars, hitherto test case prioritization techniques based on requirements in cost effective manner has not been analyzed. Here we suggest to put forth a model for system level test case prioritization from software requirement specification and to develop user fulfillment with quality software that can also be cost effective.Thus improving the rate of severe fault detection. The projected model priorities the system test cases, based on six factors. They are customer allotted priority, developer observed code implementation complexity, changes in requirements, fault impact of requirements, completeness and Traceability. The anticipated prioritization techniques is experimented with two set of industrial projects. The results realistically show that proposed prioritization techniques improves the rate of fault detection .

Regression Testing, Test case prioritization, Fault severity, Rate of fault detection.