SIT Testing, commonly known as SIT, is a vital phase in the software development lifecycle that ensures various modules or components of a software system function cohesively when integrated. While each module might perform well individually, SIT assesses how these modules interact as a whole, verifying their combined functionality and data flow. In complex software systems, where multiple interdependent components need to work in harmony, SIT plays a crucial role in detecting issues that may arise from the interaction of these components. This testing stage ensures that any integration-related problems are identified early, allowing development teams to address them before the software is deployed.

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