Regression testing is a testing which is perform to ensure that changes ( feature enhancements or defect fixes) to the software have not contrary affected it
Retesting is a Testing which is perform (something) again or differently to verify.
lets took an example:
An application is developed with six features. Released for testing. Testing team per form testing found two(red colour) are having defects. Application returns back to developers. Developers perform fixation and also release a new built with feature enhancement( new feature is in brown) test team performs the testing over built. Testing over resolved issue( dark red ) is retesting. While testing over other impacted arias is called regression testing.( feature tested again due to new feature enhancement (gold) and due to test impact of fixation ( Gray)).
Retesting is a Testing which is perform (something) again or differently to verify.
lets took an example:
An application is developed with six features. Released for testing. Testing team per form testing found two(red colour) are having defects. Application returns back to developers. Developers perform fixation and also release a new built with feature enhancement( new feature is in brown) test team performs the testing over built. Testing over resolved issue( dark red ) is retesting. While testing over other impacted arias is called regression testing.( feature tested again due to new feature enhancement (gold) and due to test impact of fixation ( Gray)).
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