Regression Testing Methodology
After modifications have been done to an existing application, you need confidence that those modifications have not negatively impacted other functionality. That’s where regression testing comes in.
Regression testing alone can encompass up to three-quarters of the total cost of testing.
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Three Phases of Regression Testing
Covers the specific functionality around the new or modified code.
New Release Functional Regression
Select 30% of the newly added functional test cases as a mini-regression at the end of the cycle. This phase focuses only on the new enhancements, not existing functionality.