Differences Between Black Box Testing and White Box Testing

The Differences Between Black Box Testing and White Box Testing are listed below.

Criteria Black Box Testing White Box Testing
Definition Black Box Testing is a software testing method in which the internal structure/ design/ implementation of the item being tested is NOT known to the tester White Box Testing is a software testing method in which the internal structure/ design/ implementation of the item being tested is known to the tester.
Levels Applicable To Mainly applicable to higher levels of testing:Acceptance Testing

System Testing

Mainly applicable to lower levels of testing:Unit Testing

Integration Testing

Responsibility Generally, independent Software Testers Generally, Software Developers
Programming Knowledge Not Required Required
Implementation Knowledge Not Required Required
Basis for Test Cases Requirement Specifications Detail Design

For a combination of the two testing methods, see Gray Box Testing.