The purpose of this project is to assess and improve the quality (efficiency and completeness) of current regression tests. Currently we are focusing on automatic test selection in buildbot and EWS, but we have a list of further research plans as well. * Automatic test selection in a Build Bot and as an Early Warning System (see [wiki:"SelectiveTestBuildBot"] and [wiki:"SelectiveTestEWS"]) * Further research topics (see [wiki:"RegressionTestResearch"]) The work is currently being performed by the Department of Software Engineering of the University of Szeged (see [wiki:"Companies and Organizations that have contributed to WebKit"]).