Now a days most of the interviewer's ask what is the difference between Re-testing and Regression testing.
What is Retesting?
Test an application. You find a bug. Report it. Developer fixes it. You test it again with the same set of data. This is known as Re-testing. It is as simple as that.
What is Regression testing?
Test an application. Find a bug. Developer fixes it. You test the other modules so as the fixation of this bug is not affected the other modules. This is known as Regression testing.
Test an module of the application. There are no bugs. A new module is added. Tester test this module to make sure no bugs are arised since a new module is added. This is also known as Regression testing. This happens most of the times when the developers are in-experienced. Regression testing is very important in software testing. Regression testing is usually implemented with the help of a tool.
*Testing is never an activity but a challenge*
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