What is the difference between black-box testing and white-box testing?

What is the difference between black-box testing and white-box testing?

Black-box testing and white-box testing are two different methods of software testing that serve distinct purposes in the software development life cycle.

Black-box testing:

Black-box testing, also known as functional testing, focuses on analyzing the functionality of a software application without knowing its internal code structure. Testers approach black-box testing from the perspective of an end-user and evaluate the software based on its specifications and requirements.

White-box testing:

White-box testing, on the other hand, is a testing technique that involves examining the internal structure, code, and logic of a software application. Also known as structural testing or glass-box testing, white-box testing requires testers to have a deep understanding of the software's internal workings in order to design effective test cases.

In summary, the key difference between black-box testing and white-box testing lies in the level of visibility into the software application's internal mechanisms. While black-box testing is focused on the software's external behavior, white-box testing is concerned with its internal processes and implementation details.