what is the difference between regression testing and
retesting?

Answer Posted / deepak

Regressin Testing:

Start it in this way:

Suppose you are testing a new release 5.1 which includes
some more functionality or some previous defects that are
fixed and incorporate with in this. So what you are doing
here?

You have your set of test cases for the 5.1 that you need
to execute first and at the end you have to run your
regression test cases. WHY?

"This is to ensure that all your functionalities are
working fine with your current build and also MAKE SURE
that your PREVIOUS functionalities are not broken"

This is the main motto of regression testing.

Retesting : This means to retest a defect after fixed by
developers..

More in depth

You got a defect and raise the defect for fix.After the
defect has been fixed you need to check it whether its
working fine or not that means you are testing it another
time to check its behaviour.

This is called retesting.

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