Certified in Risk and Information Systems Control (CRISC) Practice Test

The primary function of regression testing is to ensure that new changes or enhancements made to the application have not adversely affected the existing functionality. This type of testing is crucial in software development because it helps maintain software quality by validating that previously developed and tested features still work as intended after modifications. When new features are added or bugs are fixed, regression testing is performed to verify that these updates do not unintentionally disrupt existing functionalities. It acts as a safeguard against potential issues arising from changes, ensuring that the system remains stable and reliable. While improving application speed, verifying updated software against user requirements, and checking compatibility with previous versions may also hold importance in the broader context of software testing, they do not encompass the core intent of regression testing, which is specifically focused on safeguarding established functionalities in light of new changes.