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    Glossary
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ongoing assessment and authorization

Abbreviations / Acronyms / Synonyms:

OA

Definitions:

  The continuous evaluation of the effectiveness of security control or privacy control implementation; with respect to security controls, a subset of Information Security Continuous Monitoring (ISCM) activities.
Sources:
NIST SP 800-53A Rev. 5 under Ongoing Assessment

  The continuous evaluation of the effectiveness of security control implementation; it is not separate from ISCM but in fact is a subset of ISCM activities.
Sources:
NISTIR 8011 Vol. 1 under Ongoing Assessment