Some applications are not stand-alone systems; they interface with other systems for various reasons. In such cases, once an application has been proven to work properly in isolation, it must be shown to work in coordination with existing systems. If different applications must integrate and interoperate with each other in order to deliver their business objectives, steps must be taken to ensure any new system integrates with, and does not adversely affect, other enterprise systems.
Enterprise Systems Integration Testing Defined
Enterprise systems integration testing (ESIT) is a process that assesses the application's interoperability and cooperation with other systems currently in use. The need for a developed system to coexist with existing enterprise applications necessitates developing testing goals that can uncover faults in their integration. The objectives of ESIT are achieved by developing use case flows that encapsulate the combined systems.