·         The re-run of a test to ensure that what was not working before is now working.

 

·         Always performed when a fault was found and fixed.

 

 

Re-Testing can occur at any level or phase of testing.

 

 

It is the testing of the fix that has occurred because of the fault that was found.

 

 

When a fault is found, the tester assigns the fault to a developer who investigates and fixes the fault.

 

Once the fault has been fixed the developer will assign the fix back to the tester for Re-testing.