A set of assessment objectives and an associated set of assessment methods and assessment objects.
Sources:
CNSSI 4009-2015
NIST SP 800-137
under Assessment Procedure
NIST SP 800-137A
NIST SP 800-53A Rev. 5
under Assessment Procedure
A set of activities or actions employed by an Assessor to determine the extent that an issuer control is implemented.
Sources:
NIST SP 800-79-2
under Assessment Procedure