Definitions Edit

Military Edit

A mission-critical information system is

[a] system that meets the definitions of 'information system' and 'National Security System' (NSS) in the Clinger-Cohen Act (CCA), the loss of which would cause the stoppage of warfighter operations or direct mission support of warfighter operations. The designation of mission critical should be made by a component head, a combatant commander (CCDR), or designee.[1]
[a]ny information system (or components thereof) that is used to process, store, or display mission-critical information.[2]


A mission-critical information system

include all systems that NASA designates as critical to fulfilling its mission, including certain administrative systems and other systems not directly supporting aerospace activities.[3]

References Edit

  1. Defense Acquisition University, Glossary, at B-118 (13th ed. Nov. 2009) (full-text).
  2. DCID 6/3, Glossary, App. B.
  3. Information Security: Many NASA Missions-Critical Systems Face Serious Risks, at 1 n.1.

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