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Definitions Edit

Department of Homeland Security Edit

A system is

[a]ny combination of facilities, equipment, personnel, procedures, and communications integrated for a specific purpose.[1]


A system is

a complex of software, hardware, and human resources that jointly accomplishes one or more business functions. A system may be pre-designed or arise ad hoc by action of one or more of the participating human or software resources.[2]

Technology Edit

A system is

a group of devices or objects forming a network especially for distributing something or serving a common purpose (e.g. telephone, data processing systems).[3]
[a] [s]et of related technology components that work together to support a business process or provide a service.[4]
[a] collection of components organized to accomplish a specific function or set of functions.[5]
[an] amalgam[] of many interacting components that are combined to perform a particular set of functions, however broadly those functions may be defined. Systems must maintain their performance guarantees under widely varying and unknown external (and internal) conditions.[6]

References Edit

  1. National Infrastructure Protection Plan, at 111.
  2. NIST, Concepts for Automating Systems Integration (NISTIR 6928) (Feb. 2003) (full-text).
  3. National Transit Database Glossary.
  4. ENISA, Glossary (full-text).
  5. A Practical Guide to Federal Enterprise Architecture, at 69, App. B, Glossary.
  6. Making IT Better: Expanding Information Technology Research to Meet Society's Needs, at 32.

See also Edit

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