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Difference between Black Box Testing and White Box Testing

by support@1lyqa.com
          Black Box Testing                White Box Testing
1In this testing knowledge of programming is not necessarily essential.In this form of testing knowledge of programming is must means it is essential.
2Normally independent software testers are responsible for doing Black Box Testing.Normally software developers are responsible for doing White Box Testing.
3In this form of testing Knowledge of implementation is not required.In this form of testing Implementation knowledge is required.
4In Black Box Testing, testers may or may not be technically sound.Normally software developers are involved in this testing, but if it is performed by software testers, then testers should be technically sound.
5In this sort of testing testers mainly focuses on the functionality of the system.In this sort of testing developers mainly focuses on the structure means program/code of the system.
6This testing is done by testers.This testing is mostly done by developers.
7This type of testing always focuses on what is performing/ carried out.This type of testing always focuses on how it is performing/ carried out.
8In Black Box Testing no knowledge regarding internal logic of code is needed means no need of programming is necessary.In White Box Testing knowledge regarding internal logic of code is needed means need of programming is mandatory.
9Other names of this testing include means synonyms of black box testing are testing regarding functionality means Functional testing, Behavioral testing, and Opaque-box/ Closed-box testing that is the reason why in this testing no knowledge of programming is needed.Other names of this testing include means synonyms of white box testing are testing regarding code means Structural testing, Glass-box/ Clear-box testing, Open-box testing/ Transparent-box testing, Logic-driven testing and Path-oriented testing that is the reason why in this testing knowledge of programming is needed.
10Black box testing means functional test or external test.White box testing means structural test or interior test.

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