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I think these methods are used during test design phase and their influence is hard to see in the tests once they are implemented.
-Black Box test is the test design method treat system as a black-box so it cant explicitly use knowledge of the internal structure and focusing on testing functional requirements.
-White Box test is slightly different from black box,because use of internal knowledge is not strictly forbidden,but discouraged.

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Posted by HamidAliKhan

In fact these methods are used during test design phase and their influence is hard to see in the tests once they are implemented.
-Black Box test is the test design method treat system as a black-box so it cant explicitly use knowledge of the internal structure and focusing on testing functional requirements.
-White Box test is slightly different from black box,because use of internal knowledge is not strictly forbidden,but discouraged.

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Posted by shehenshah

->Basically both are design methods:
1.)Blacking box testing focusing on testing functional requirements of the system.
2.)White box testing focus on the internal knowledge of the system software.

For details:

en.wikipedia.org/wiki/Black_box_testing
en.wikipedia.org/wiki/White_box_testing

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Posted by sagitraz