Description: Error Propagation Testing is a critical approach in the field of software testing that focuses on analyzing how errors or failures in one component of the system can affect other components and ultimately the system as a whole. This type of testing is based on the premise that an error does not always manifest in isolation; it can often trigger a chain of problems that compromise the software’s functionality. Error propagation testing allows developers and testers to identify not only the location of the original error but also the areas of the system that could be affected by it. This approach is essential for ensuring the robustness and reliability of the software, as it helps prevent unexpected failures in production. Additionally, these tests can be automated, making it easier to integrate them into the software development lifecycle, allowing for early problem detection and continuous improvement in the quality of the final product.