Described Integration Testing?

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According to IEEE, Integration Testing is An orderly progression of testing in which software elements, hardware elements, or both are combined and tested, to evaluate their interactions, until the entire system has been integrated. It Test against system design and Focuses on communication between modules start with one module, then add incrementally. Various Types of Integration Testing are: * big bang approach - Integrate Everything at once * top-down approach - Keep on breaking the system in parts one by one and than test each part. * bottom-up approach - Test the small parts first and than keep on integrating the system and keep on testing the bigger module of it. * mixed approach - Done by help of stubs (Dummy modules)
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