What is black box testing method?

Black box testing is a software testing method that focuses on evaluating the functionality of an application without delving into its internal code structure or implementation. Testers assess the system's outputs based on various inputs, ensuring that the software behaves as expected according to the specified requirements. This technique is useful for identifying discrepancies in user requirements and helps validate the overall user experience. It can be applied at different levels of testing, including unit, integration, and system testing.