Thillaikarasi Muthusamy, K. Seetharaman, Efficiency of Test Case Prioritization Technique Based on Practical Priority Factors, International Journal of Soft Computing, Volume 10,Issue 2, 2015, Pages 183-188, ISSN 1816-9503, ijscomp.2015.183.188, (https://makhillpublications.co/view-article.php?doi=ijscomp.2015.183.188) Abstract: Test metrics provides the current level of development in testing and gives a projection to proceed along with testing activities by allowing us to set targets and future trends. The objective of test metrics is to determine the planned and actual quantities of effort, time, resources which requires to complete the development of the software project. Test cases increases the ability to meet some targets such as code coverage and rate of fault detection. Here, researchers present a new metrics based on varying requirement priorities, test case priorities, test case execution time and fault severities. The case study demonstrates that the rate of test case priority per unit time can be increased and improved on quality testing and customer satisfaction. To review the practicality of this technique, researchers apply it as a realistic example from the industrial projects. Here, researchers summarize about test process measurement and analyze the effectiveness of metrics by cost, time, quality of test process based on the result of proposed metrics. Keywords: Regression testing;test case;test case prioritization;fault severity;rate of fault detection