Regression testing is a safety net for unwanted changes. It means to test that a fix or change has not adversely affected previously working functionality, in other words it has not regressed.
Almost all major software failures have been caused by things which were not tested, rather than poor assessment of test results.
It is what you don’t test that will catch you out, that’s why complete 360 degree testing is so powerful.
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CertainTeed is a North American manufacturer of sustainable exterior and interior building products. With multiple, heavily customized SAP implementations, as well as numerous integrations including Salesforce users, were overwhelmed by a high rate of change. Necessary checks didn’t always happen, were very costly and inefficient to run, leaving room for defects to reach production.
Every business process across multiple applications was captured. The result was easy-to-follow documentation and animations that provided the small automation team with the information they needed. Then TestDrive captured every item on every screen automatically, without any coding. Secondly, the results of a regression test were compared to any selected baseline, highlighting every difference: No undetected changes.
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