Answer Posted / aruna tummala

There are 3types of techniques.
1.Black Box Technique 2.White Box Technique 3.Grey Box Technique
1.Black Box Technique:Black Box
testing technique done by the test engineers.B.B
testing doesn't require knowledge of source code.
Eg for B.B testing is functional testing,integration
testing,system testing.
2.White Box Technique:White box testing done by the developers.W.B.testing requires knowledge of source code
Eg for W.B.Testing is Unit testing
3.Grey Box Technique:Grey Box testing refers to the technique of testing a system with limited knowledge of the internals of the system.Grey box testers have access to detailed design document with information beyond requirement documennts.

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