Which of the following best describes the Black-box technique?

The Black-box testing technique is effectively characterized by its approach of focusing solely on the outputs generated in response to specific inputs, without taking into account how the system produces those outputs internally. This means that when using the black-box technique, testers do not need to have any knowledge of the internal workings or code structure of the application. Their primary concern is to validate that the software behaves as expected based on specified requirements or user stories.

This user-centered approach allows for testing functionalities from an end-user perspective, making it easier to ensure that all features work correctly as intended. By not delving into the internal mechanics of the software, this technique can be applied to a wide variety of application types, allowing testers and stakeholders to focus on what the system should do rather than how it does it.

In practice, while other methods may require a detailed understanding of coding and logic structures—elements that involve decision coverage or testing all possible branches in the code—the black-box testing method excels in its simplicity and relevance to user experience and requirements validation.