Black box and white box difference?

Answer 1

Black box testing focuses on evaluating the functionality of a system without knowledge of its internal workings, treating it as a "black box" where inputs are tested against expected outputs. In contrast, white box testing involves a thorough examination of the internal logic, code structure, and algorithms of the software, requiring knowledge of its implementation. While black box testing is user-centric and often used for functional testing, white box testing is developer-centric and typically used for unit and integration testing. Each approach serves different purposes in the software development and testing lifecycle.