Automating impact analysis and regression test selection based on UML designs

This paper presents a methodology and a tool to support test selection from regression test suites based on change analysis in object-oriented designs. We assume that designs are represented using the Unified Modeling Language (UML) and we propose a formal mapping between design changes and a classification of regression test cases, i.e., three categories: Reusable, Retestable, and Obsolete. We provide evidence of the feasibility of the methodology and its usefulness by using our prototype tool on an industrial case study.