What characterizes use case testing?

Use case testing is characterized by the focus on sequences of interactions, or transactions, that occur between actors, such as users or external systems, and the system being tested. This approach allows testers to validate that the system behaves as expected in various scenarios, reflecting real-world interactions.

By modeling the users' requirements through use cases, testers can ensure that all the different paths through a system are covered and can identify any gaps or potential issues in functionality. This approach not only helps in verifying that the system meets the specified requirements, but it also enhances the likelihood of discovering bugs that may emerge during specific sequences of user interactions.

The emphasis is on capturing all possible interactions, which includes both positive scenarios (where things go as planned) as well as potential negative scenarios (where errors or unexpected behavior might arise). Hence, methodical testing through use cases helps in delivering a robust and user-friendly product.