By doing the Regression testing we can make sure that any 
new bug fixes did not change the functionality of the 
application.

i think the main purpose of Regression is to know that any 
impact on the functionality of the application or specific 
module where the developer had changed the code while 
fixing the bug. Tester had to test the total scenarios not 
that particular scenario in Regression

HI

   Regression Test is to Check
   1.Corrected Bug should not cause side effect
     over the screen or related Modules.

   2. when the Build goes for Added Features

   3. It can be exteded even up to Supporting phase.


   sun_ramprasad@yahoo.com    9940314706

Re-execution of selected test cases on modified bulid 
ensure bug fix work completeness and correctness also chech 
whether it affects other functionalities or not

The main purpose of Regression Testing is to make sure that
any changes introduced by the programmer in one module/unit
do not introduce any bugs in other modules of the same
application,that were found to be bug-free in the earlier
test build i.e before the changes were applied.

The main purpose of Regression Testing is to make sure that
any changes introduced by the programmer in one module/unit
do not introduce any bugs in other modules of the same
application,that were found to be bug-free in the earlier
test build i.e before the changes were applied.

In other words when the bug where fixed by the developer. 
we have to test that application to ensure that to check 
that dye to to bug fixing there will be probality of 
accruing some other bugs else where in the program

Testing is conducted on the modified build,to ensure that 
changes in the exixting code is working and because of this 
changes there is no sideffcts.

first we have to find the impacted areas of the bug fix.
after the bug fix retest and regression test will happen. 
means simply we execute all the critical and major test 
cases of the functionality. to conform the fix 100% ok.