SYSTEM INTEGRATİON TEST ?
It is defined as a software test performed in a hardware and software environment to verify the behavior of the whole system. A complete and integrated system for assessing the compliance of the system with the specified requirements.
A System Integration Test (SIT) is performed to verify the interaction between modules of a software system. It is concerned with verifying the Software Requirements Specification / Data and the high and low level software requirements specified in the Software Design Document.
It also verifies that a software system is with others and tests the interface between the modules of the software application. In such testing, the modules are first tested individually and then combined to form a system.