1. A computer-implemented method for focusing product testing based on areas of change within the product, comprising: establishing a link between at least one resource file of a product and a test case, wherein establishing the link comprises recording one or more values associated with an action triggered by the test case, determining the resource file associated with each value, and linking each determined resource file to the test case; comparing the resource files of a first build of the product with the resource files of a second build of the product; generating a report that comprises which resource files changed between the first build of the product and the second build of the product; displaying the resource files that have changed and the test cases linked to the changed resource files; and limiting an execution of test cases to those test cases that are linked to the changed resource files.