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Differentiate between White and Box Black box Testing.
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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,Also called behavioural testing 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. Also called glass box testing
Levels Applicable To Mainly applicable to higher levels of testing: 1.) Acceptance Testing 2.) System Testing Mainly applicable to lower levels of testing: 1.) Unit Testing 2.) 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
Type Black box testing means functional test or external testing White box testing means structural test or interior testing
Aim check on what functionality is performing by the system check on how System is performing
Suitable for This type of project suitable for large projects This type of project suitable for small projects
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