Regression Testing: Techniques for Test Suite Minimization

___________________________________________________________________________________________________ Software testing occurs simultaneously during the software development to detect errors as early as possible and to guarantee that changes made in software did not change the system negatively. However, during the development phase, the test suite is efficient and tends to increase in size. Due to the resource and time constraints for re-executing large test suites, it is important to develop techniques to reduce the effort of regression testing. Several approaches have been studied to reduce the effort of regression testing: test suite minimization, selection, and prioritization. Test suite minimization techniques aims at identifying and eliminating redundant test cases from the suite. Test suite selection techniques identify a subset of test cases from suite, necessary to re-test the changes in the software. Test suite prioritization techniques schedule test cases for execution in an order to increase the early fault detection.