Which statements about use-case testing are most accurate?

Use-case testing is a software testing technique that focuses on validating the interactions a user can have with a system, typically represented through use cases.

The most accurate statements regarding use-case testing would involve understanding key concepts such as actors, use-cases, and their interactions. A use-case diagram, for instance, highlights various actors involved, which represent distinct roles that interact with the system. These actors can be human users, but they can also include other systems or external entities that engage with the software.

Particularly significant to the validity of use-case testing is that a use-case describes interactions between actors and the system. This encapsulates the essence of what use cases are designed for—defining functional requirements and scenarios that need to be tested for successful software delivery.

In the context of unit testing, while use cases can provide insight into scenarios for larger testing levels, unit testing is generally focused on testing individual components or pieces of code rather than end-to-end scenarios articulated by use cases. Therefore, it is less accurate to claim that use cases are the most common test basis for unit testing.

Thus, comprehensively understanding the role of use cases and actors in use-case testing is paramount, with the emphasis on interactions and not merely individual components or roles