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assurance case

Abbreviation(s) and Synonym(s):

None

Definition(s):

  A structured set of arguments and a body of evidence showing that an information system satisfies specific claims with respect to a given quality attribute.
Source(s):
CNSSI 4009-2015 NIST SP 800-39, NIST SP 800-53 Rev. 4
NIST SP 800-137 under Assurance Case NISTIR 7298
NIST SP 800-39 under Assurance Case Software Engineering Institute, Carnegie Mellon University
NIST SP 800-53 Rev. 4 under Assurance Case Software Engineering Institute, Carnegie Mellon University
NIST SP 800-53A Rev. 4 under Assurance Case Software Engineering Institute, Carnegie Mellon University

  A reasoned, auditable artifact created that supports the contention that its top-level claim (or set of claims), is satisfied, including systematic argumentation and its underlying evidence and explicit assumptions that support the claim(s).
Source(s):
NIST SP 800-160 [Superseded] ISO/IEC 15026