Black box testing evaluates software based on inputs and expected outputs, without requiring insight into the internal code or system design. This makes it especially effective for validating functionality from a user or external system perspective.

By applying black box testing, teams can identify missing features, incorrect behavior, and integration issues that may not surface during code-focused testing. It is commonly used for testing user interfaces, APIs, and end-to-end workflows.

Including black box testing in a comprehensive testing strategy helps teams ensure that software meets functional requirements and behaves correctly in real-world scenarios.