Before revision: System Integration is defined in engineering as the process of bringing together the component sub-systems into one system (an aggregation of subsystems cooperating so that the system is able to deliver the overarching functionality) and ensuring that the subsystems function together as a system, and in information technologyFor computer systems, the term "systems integration" has included the plural word "systems" although the singular form has also been used in referring to computer systems.
After revision: System integration is defined in engineering as the process of bringing together the component sub-systems into one system (an aggregation of subsystems cooperating so that the system is able to deliver the overarching functionality) and ensuring that the subsystems function together as a system, and in information technologyFor computer systems, the term "systems integration" has included the plural word "systems" although the singular form has also been used in referring to computer systems.