Black Box Testing: Black Box Testing is a Software Testing technique in which the tester doesn’t know the internal structure, design and implementation of the software application that is being tested.
Gray Box Testing: Gray Box Testing is a software testing technique which is a combination of Black Box Testing technique and White Box Testing technique. The internal structure, design and implementation is partially known in Gray Box Testing.
Differences between Black Box Testing and Gray Box Testing:
|Black Box Testing||Gray Box Testing|
|It is a software testing technique in which the tester doesn’t know the internal structure of the application being tested.||It is a software testing technique in which the tester partially know the internal structure of the application being tested.|
|It is known as closed box testing.||It is known as translucent testing.|
|No knowledge of implementation is required.||Knowledge of implementation is required but need not to be expert.|
|It is based on external expectations and outer behavior of the software.||It is based on database diagrams and data flow diagrams.|
|It is less time consuming.||It is time consuming but not too much.|
|It is done by trial and error method.||It is done on the basis of data domains.|
|It improves some of the qualities of the software.||It improves overall quality of the software.|
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