What is the main purpose of use case testing?

Use case testing primarily focuses on validating the interactions between users (or actors) and the system to ensure that the application behaves as expected in typical scenarios. The main purpose is to identify defects in the process flows that users would typically follow, ensuring that the system meets the specified requirements and user needs. This testing method helps verify that the application works as intended for real-world scenarios, thereby confirming that users can successfully complete their tasks.

By concentrating on typical use cases, testers can trace the paths that users are likely to take when interacting with the system and ensure that each function operates correctly within these contexts. This approach enhances the quality and usability of the software, making it easier for users to achieve their goals without encountering unanticipated issues.