what is difference between regression and retesting?
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Answer Posted / prashant

Regression testing: is the practice of running an old test
suite after each change to the system or after each bug fix
to ensure that no new bug has been introduced due to the
change or bug fix. To check the ill effect of the software
to run test cases again on the modified viersion of the
software.

Retesting: if there would be any error at any point in the
S/W and to check that particular point of error has been
solved or not or it is workng properly or not is known as
retesting.

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