Description: Functional Change Testing is a set of procedures designed to verify that modifications made to software do not introduce new problems into its existing functionality. This type of testing focuses on ensuring that new features, bug fixes, or enhancements do not negatively impact the functions that were already operational. It is carried out by executing test cases that evaluate both previously existing functionalities and newly implemented ones. Functional Change Testing is crucial in the software development life cycle, as it helps maintain the quality and stability of the product throughout its evolution. These tests can be manual or automated, and their effective implementation contributes to early defect detection, which in turn reduces costs and time in development. In environments where changes are frequent, these tests become an essential practice to ensure that the software continues to meet user requirements and market expectations.
