retesting v/s regression

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Retesting is testing the same functionality again to ensure the defect is fixed, while regression testing is testing the entire application to ensure new changes do not impact existing functionality.

Retesting focuses on confirming a specific defect fix, while regression testing focuses on ensuring no new defects are introduced.
Retesting is usually done by the tester who found the defect, while regression testing can be done by any tester.
Retesting is a subset of regression testing, as it only focuses on specific areas affected by a defect.
Example: Retesting would involve testing a login functionality after a defect related to incorrect password validation is fixed, while regression testing would involve testing the entire application after a new feature is added.

retesting v/s regression

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