Quality is delighting customers
Regression testing software is a software series that is intended to correct isolate problems that have arisen with software on the hard drive that was working accurate, yet suddenly developed a difficulty.
Basically, the software works its magic by taking a look at diagnostics and backups from earlier periods when the issue was not present, then compares the data to that of a present diagnostic.
This simple process can usually supply valuable clues about what has changed and built the operational problem.
The value of Regression Testing services is that it can recognize issues with a number of different origins. For example, the software may be capable to pick up on a local reason for the issue, such as some new virus or errors being introduced to the hard drive and becoming embedded in one or more of the files used to drive a program.
Regression testing is usually performed while providing qa testing services after verification of newly implemented feature, changes or new functionality.
Top software testing companies usually execute regression tests in the following cases:
1. Whenever there is new functionality added to the application
2. Whenever there is a change in existing Requirement
3. Whenever there is a Defect Fix
4. When there is an Environment change
Regression testing is generally tedious and time-consuming. So, the best practice to execute them is to automate test cases instead of running them manually every time. In case there are thousands of test cases, it’s better to create automation test scripts for the test cases which is to be executed on every build.
First of all, we need to understand what is Regression Testing. It is an activity performed to ensure the different functionalities of the system are still working as expected and the new functionalities added did not break any of the existing ones.
Secondly, you generally write automated tests or do manual testing to perform the above mentioned testing. Regression testing can be performed in various phases of the SDLC, it all depends on the context. I have done it after end of the sprints, before a release, also have had daily regression tests running on a daily basis.
Hopefully this gives an idea on when to do regression testing.