Black box testing is also known as behavioral testing.

Black box testing is a testing technique where the tester does not have any knowledge of the internal workings of the system being tested. The tester focuses solely on the inputs and outputs of the system, without considering the internal code, structure, or implementation details. This approach is similar to how a user would interact with the system, without any knowledge of the underlying technology.

Black box testing is based on the principle of testing the system based on its expected behavior or functionality. The tester treats the system as a "black box," where they are only concerned with the inputs and outputs, and not with the internal logic or implementation.

Black box testing is also known as behavioral testing because it focuses on testing the behavior or functionality of the system. The tester identifies various scenarios and inputs to test the system's response or output. The goal is to ensure that the system behaves as expected and meets the requirements.

Black box testing can be performed at various levels, including unit testing, integration testing, system testing, and acceptance testing. It helps identify defects or issues related to incorrect behavior, missing functionality, or any unexpected outputs.

Black box testing is widely used in software testing because it provides an objective and independent view of the system. It allows testers to focus on the functional aspects of the system without getting bogged down by the implementation details.

In summary, black box testing is a testing technique that focuses on the behavior or functionality of the system. It is also known as behavioral testing because it tests the system based on its expected behavior. The tester does not have any knowledge of the internal workings of the system and focuses solely on the inputs and outputs.