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  • Integration Testing

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    Integration Testing

    Testing the data flow or the interface between the modules is known as integration testing.

    Types of Integration Testing:

    1. Incremental Integration Testing.
    2. Non-Incremental Integration Testing.

    Incremental Integration Testing

    When there is clear relationship between the modules then we go for incremental integration testing.

    There are two approaches for incremental integration testing:

    1. Top down approach.
    2. Bottom up approach.

    Top down approach

    In top down approach we incrementally add the modules from top to the bottom and check the data flow in same order.

    Bottom up approach

    In bottom up approach we incrementally add the modules from bottom to the top and check the data flow in same order.

    Non-Incremental Testing

    When there is no clear relationship between the modules then we go for Non-Incremental Integration Testing.
    Since the data flow is not clear between the modules we hit on each module and check for data flow so it is also known as big bang method.

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