## What is Trace-Based Testing? Trace-based testing is a software testing technique that involves tracing the execution of test cases to ensure that all functionalities and features of a system are tested properly. This method helps in identifying the parts of a system that have been affected by changes in code or functionality. It is also used to identify any missing or additional requirements, and to ensure that all specified requirements have been implemented correctly. In this approach, testers create a traceability matrix that maps each test case to its corresponding requirement. This matrix provides a clear picture of which test cases are associated with which requirements, making it easier for testers to track their testing progress and coverage. Trace-based testing is particularly useful in [[Regression Testing]] and retesting scenarios where it's important to understand which parts of the system have been affected by recent changes. It can also be beneficial in complex systems where it's crucial to understand the interdependencies between different parts of the system.