access enforcement mechanism
A control implementation — realized as hardware, software (e.g., access control lists, access control matrices), firmware, cryptography, or combinations thereof — that carries out an organization's access control policy by permitting or denying subjects (users or processes) the ability to interact with objects (files, records, devices, domains, programs). It is distinguished from the policy itself by being the operative, runtime layer that actually applies decisions; the policy declares what is authorized, while the mechanism enforces it. In practice, the field uses the term to denote the full range of such implementations deployed at multiple tiers — system, network boundary, application, and service levels — with the understanding that mechanisms at deeper tiers (e.g., application-level) supplement rather than replace system-level enforcement.
Framework senses
- §1 · attested_usage_reviewer_confirmed
- No definition is given in NIST SP 800-171r3. The term is attested in use at 1 citation in that document; a definition is pending curation.Increment 2: attested in 800-171r3 without a glossary definition.
- §1 · web_lookup_draft
- A control implementation — realized as hardware, software (e.g., access control lists, access control matrices), firmware, cryptography, or combinations thereof — that carries out an organization's access control policy by permitting or denying subjects (users or processes) the ability to interact with objects (files, records, devices, domains, programs). It is distinguished from the policy itself by being the operative, runtime layer that actually applies decisions; the policy declares what is authorized, while the mechanism enforces it. In practice, the field uses the term to denote the full range of such implementations deployed at multiple tiers — system, network boundary, application, and service levels — with the understanding that mechanisms at deeper tiers (e.g., application-level) supplement rather than replace system-level enforcement.DR-088 backfill from the noun definition column