Requirement based test case prioritization

Test case prioritization involves scheduling test cases in an order that increases the effectiveness in achieving some performance goals. One of the most important performance goals is the rate of fault detection. Test cases should run in an order that increases the possibility of fault detection and also that detects faults at the earliest in its testing life cycle. In this paper, an algorithm is proposed for system level test case prioritization (TCP) from software requirement specification to improve user satisfaction with quality software and also to improve the rate of severe fault detection. The proposed model prioritizes the system test cases based on the three factors: customer priority, changes in requirement, implementation complexity. The proposed prioritization technique is validated with two different sets of industrial projects and the results show that the proposed prioritization technique improves the rate of severe fault detection.