System Integration Testing

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Most computer system will link with other systems, either internally to the organisation of externally.

The purpose of system integration testing is to expose defects in the interfaces and interactions between systems and between hardware and software.

It is normally carried out once system testing is complete by independent system testers in a near live environment.

When testing links with external systems, testers may control only their own side of the interface, which might be considered as a risk, as their test system may be linked to an external production system.

Workflow implementation of business processes may involve a series of systems, where cross platform issues may be significant.