Regression testing - theory and live testing
In our department there were no testing theory, certificates, etc. the new comers had to read some program descriptions, do a test of data entry and then started testing the new features of the program, or the things that were changed. they call it extreme programming. so, decided to have a look at the web, what it is Regression testing. and - was a litle bit surprised. seems almost all the time we had been doing the Regression testing.
Comments
If the system is validated for the important functionalities for a new build, to verify the old or exsisting stuffs are not affected in this build, is called regression. Regression test cases would be identified earlier before you perform your execution.