Bringing together component sub-systems into one system
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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,[1] and in information technology[2] as the process of linking together different computing systems and software applications physically or functionally,[3] to act as a coordinated whole.
The system integrator integrates discrete systems utilizing a variety of techniques such as computer networking, enterprise application integration, business process management or manual programming.[4]
System integration involves integrating existing, often disparate systems in such a way "that focuses on increasing value to the customer"[5] (e.g., improved product quality and performance) while at the same time providing value to the company (e.g., reducing operational costs and improving response time).[5] In the modern world connected by Internet, the role of system integration engineers is important: more and more systems are designed to connect, both within the system under construction and to systems that are already deployed.[6]
^Gilkey, Herbert T (1960), "New Air Heating Methods", New methods of heating buildings: a research correlation conference conducted by the Building Research Institute, Division of Engineering and Industrial Research, as one of the programs of the BRI fall conferences, November 1959., Washington: National Research Council (U.S.). Building Research Institute, p. 60, OCLC 184031
^For 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.
^CIS 8020 – Systems Integration, Georgia State University OECD
^Moore, June (13 December 1982), "Software Reviews, BusinessMaster II+, ledger for CP/M systems", InfoWorld, InfoWorld Media Group, Inc, p. 31, ISSN 0199-6649
^ abVonderembse, M.A.; Raghunathan, T.S.; Rao, S.S. (1997). "A post-industrial paradigm: To integrate and automate manufacturing". International Journal of Production Research. 35 (9): 2579–2600. doi:10.1080/002075497194679.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^Merriman, Dan (19 Feb 1996), "Tying it all together", Network World, IDG Network World Inc, p. 51, ISSN 0887-7661
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