How do you approach regression testing? Can you give an example?

Sample answer to the question

When it comes to regression testing, my approach is to thoroughly test the functionality of the software application to ensure that any bugs or issues that were fixed in the previous version have not reappeared. I create a comprehensive test plan that covers all the major features and functionalities of the application. For example, in my previous role, we were working on a mobile banking app and a bug was reported regarding the transfer of funds. After the bug was fixed, I performed regression testing by conducting test cases to verify that the transfer functionality was working as expected and that the bug was indeed resolved.

A more solid answer

In approaching regression testing, I ensure that I have a thorough understanding of the changes made in the software and the impact they might have on existing functionality. I create a regression test suite that includes test cases covering critical features and areas that are most likely to be affected. For instance, in my previous role as a QA Tester, we were developing an e-commerce platform and a bug was reported regarding the checkout process. After the bug was fixed, I executed the regression test suite, focusing on the checkout process, order processing, and payment integration. This allowed me to validate that the bug was indeed resolved and that no new issues were introduced.

Why this is a more solid answer:

This is a solid answer that demonstrates the candidate's understanding of regression testing and the importance of creating a regression test suite tailored to the specific software application being tested. The example provided showcases the candidate's ability to identify critical features and areas to focus on during regression testing.

An exceptional answer

When it comes to regression testing, I follow a systematic and organized approach. First, I analyze the changes made in the software and identify potential areas that might be affected. Then, I prioritize these areas based on their impact and create a comprehensive regression test plan. This plan includes not only the critical features but also the related functionalities and integrations. For instance, in my previous role as a QA Tester in a healthcare software company, we were working on a patient management system, and a bug was reported regarding the appointment scheduling. After the bug was fixed, I conducted regression testing by running a suite of test cases that covered not only the appointment scheduling but also the patient registration, medical record management, and integration with third-party systems. This allowed me to verify the overall stability of the system and ensure that no new issues were introduced during the bug fix.

Why this is an exceptional answer:

This is an exceptional answer because it demonstrates the candidate's systematic and organized approach to regression testing. The candidate not only considers the critical features but also takes into account the related functionalities and integrations, showcasing a thorough understanding of the job requirements. The example provided further demonstrates the candidate's ability to handle complex software applications and ensure overall system stability during regression testing.

How to prepare for this question

Familiarize yourself with different regression testing methodologies and techniques, such as selective regression testing and full regression testing.
Stay updated on the latest industry trends and tools related to regression testing.
Practice creating comprehensive test plans and test cases for regression testing.
Brush up on your knowledge of bug tracking and issue management systems.
Develop your collaboration and communication skills, as regression testing often requires close collaboration with the development team.

What interviewers are evaluating

Attention to detail
Knowledge of regression testing
Ability to create test plans
Experience in bug fixing
Collaboration skills