Difference Between Regression Testing And Retesting

Regression testing and retesting are two different types of software testing that are often used in the context of fixing defects or bugs:

Regression Testing: Regression testing is a type of software testing that is performed to ensure that changes or fixes made to a software application or system do not have any unintended side-effects on previously working functionality. It involves re-executing test cases that have previously passed to ensure that they still pass after the changes or fixes have been implemented. Regression testing is usually performed after a software release, and is intended to ensure that the software remains stable and reliable after changes have been made.

Retesting: Retesting is a type of software testing that is performed to verify that a defect or bug has been fixed and that the software is now functioning as expected. It involves re-executing test cases that failed previously due to the defect, and verifying that they now pass after the fix has been implemented. Retesting is usually performed after a bug fix has been made, and is intended to ensure that the software is now working as intended.

To summarize, regression testing is focused on ensuring that changes or fixes made to a software application do not have unintended side-effects on previously working functionality, while retesting is focused on verifying that a defect or bug has been fixed and that the software is now functioning as expected. Both types of testing are important for ensuring that software is stable, reliable, and functioning as intended.