Please note that the content of this book primarily consists of articles
available from Wikipedia or other free sources online. System
Integration Testing (SIT), in the context of software systems and
software engineering, is a testing process that exercises a software
system's coexistence with others. System integration testing takes
multiple integrated systems that have passed system testing as input and
tests their required interactions. Following this process, the
deliverable systems are passed on to acceptance testing. Systems
integration testing (SIT) is a testing phase that may occur after unit
testing and prior to user acceptance testing (UAT). Many organizations
do not have a SIT phase and the first test of UAT may include the first
integrated test of all software components.
