Identification
Identify information system users, processes acting on behalf of users, or devices.
CMMC Model
Cybersecurity Maturity Model Certification (CMMC) Model Overview | Version 2.0 10
References
-ANSI/ISA-62443-4-1-2018 page 55
-NIST SP 800-171r2 3.5.1
https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-171r2.pdf
-NIST SP 800-53 3.7 https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-53r5.pdf