A description of the structure and behavior for an enterprise’s security processes, information security systems, personnel and organizational sub-units, showing their alignment with the enterprise’s mission and strategic plans.
Sources:
NIST SP 800-30 Rev. 1 under Information Security Architecture from NIST SP 800-39

  An embedded, integral part of the enterprise architecture that describes the structure and behavior of the enterprise security processes, security systems, personnel and organizational subunits, showing their alignment with the enterprise’s mission and strategic plans. See security architecture.
Sources:
NIST SP 800-37 Rev. 2 from OMB Circular A-130 (2016)

  An embedded, integral part of the enterprise architecture that describes the structure and behavior for an enterprise’s security processes, information security systems, personnel and organizational sub-units, showing their alignment with the enterprise’s mission and strategic plans.
Sources:
NIST SP 800-39 under Information Security Architecture

  An embedded, integral part of the enterprise architecture that describes the structure and behavior of the enterprise security processes, security systems, personnel and organizational subunits, showing their alignment with the enterprise’s mission and strategic plans.
Sources:
NIST SP 800-53 Rev. 5 from OMB Circular A-130 (2016)
NIST SP 800-53A Rev. 5 from OMB Circular A-130 (2016)