Analysis of Different Regression Testing Approaches

Abstract: As the software systems evolve with time, regression testing is an important and very expensive activity to ensure that this evolution will not disrupt the existing functionalities of the system. An important issue, in this context, is optimal selection of subset of test cases from the initial test suite to minimize the testing time, cost and effort. Researchers have proposed various types of regression test selection techniques that are code-based, and model-based. Code-based regression test selection techniques can be effectively applied for unit-testing. It uses relationship between code parts and test cases that traverse them to locate test cases for retest when code is modified. Broad adoption of model centric development has created opportunities for model-based regression testing as models also evolve. It selects test cases based on model modification, so it uses relationships between model elements and test cases that traverse those elements to locate test cases for retest. This paper is the analysis of both code-based and model-based regression testing technique according to some comparison and evaluation criterion.

Keywords: Regression Testing, Code-based regression testing, Model-based regression testing,Selective regression testing.