What is the difference between uat and regression testing

But how are they different? And when do you use each one? Regression testing is a software testing practice that ensures an application still functions as expected after any code changes, updates, or improvements.

Changes in the code may involve dependencies, defects, or malfunctions. Regression testing mitigates these risks, so the previously developed and tested code remains operational after new changes.

In contrast, UAT is when actual users test the software to see if it can perform the required tasks in real-world situations. UAT testers aim to validate changes made against original specifications and are usually the last test cycle before the Production release.

Regression testing occurs after any change to the code base. It should also be executed when a previously discovered issue has been marked as fixed and must be verified. Version Upgrades to an Application are a prime example of an activity requiring Regression Testing. Are you facing resource issues when it comes to finding teams to perform release updates?

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Contact us today to get started. I'm confused with the above question. I have been asked this question in an interview and when i answered that in functional testing we test the functionality of specific module, in regression testing we test on the modified build whether bugs has been fixed or not and is it affecting any other functionality.

And in UAT we test whether the final user is able to accept it. But the interviewer was not happy with my answer and he confused me saying if ur doing testing in every phase and conclude that it is working as per requirement and fix all the defects, what is the need of all different phases?

Share Tweet Facebook. Views: Well, you answered it pretty well and correct. But the interviewer was expecting it in presentable format with exact and specific reasons behind testing in different phases.

UAT is where you handle the product to the customers evaluation eg: Actual market people involved in testing - as we QA's only suppport UAT and are not entirely involved in this phase untill market people requires and the expected outcome is to make customer happy after his own validation and take remarks if any. So i would say, give him some own example the release of a particular project with respect to all the phases and telling the need of these phases would be perfect.

Further, it is mandatory to test your application whenever any new feature is added for performance free of defects. Identify the need: Once the software is developed, it must be continuously modified according to the critical needs of the client. Set requirements and standards: Since regression is based on an agile environment, a client can send their own requirements called "customer relevant functionalities," which should be prioritized. Determine the starting point: In an agile environment, you should know where start for an easy and efficient test.

Determine the stopping point: Similar to the start point, the stop point should be predetermined. The application needs to be tested each time new changes are made to the product and it becomes tedious to test the entire application again and again.

Thanks for visiting DZone today,. Edit Profile. Sign Out View Profile. Over 2 million developers have joined DZone. Learn why regression testing your software is essential, how it's different from UAT, and its pros and cons. Like 3. Join the DZone community and get the full member experience.

Join For Free. There are numerous ways of testing a software and regression testing is of them. What Is Regression Testing?