[t]he existence of more than one means for accomplishing a given function. Each means of accomplishing the function need not necessarily be identical.
Redundancy refers to
[a] [r]epetition of parts or subsystems to assure operation if original (primary) part or subsystem fails.
NISTIR 7628, Vol. 1, at B-2 n.34.
Practices for Securing Critical Information Assets, Glossary, at 57.
Department of the Army, Supervisory Control and Data Acquisition (SCADA) Systems for Command, Control, Communications, Computer, Intelligence, Surveillance, and Reconnaissance (C4ISR) Facilities, at B-4 (Jan. 21, 2006) ( full-text).
Department of Defense, Glossary of Defense Acquisition Acronyms and Terms (14th ed. July 2011) ( full-text). ↑
DHS Risk Lexicon, at 26.
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