controlled access
Limited entry system
Controlled access describes a system where entry to a place, resource, or information is restricted and monitored.
Roads with controlled access, such as highways and freeways, limit where vehicles can enter and exit, typically through designated ramps rather than intersections.
Buildings with controlled access require credentials like key cards, codes, or biometric scans to enter.
The term emphasizes that access isn't merely limited but actively managed: The data center maintains controlled access to protect sensitive equipment.
- lockMechanism requiring a key
- checkpointInspection station on route
- turnstileRotating single-passage barrier
- gateHinged barrier in fence
- gated communityRestricted-access residential area
toll road · members-only · fence · no trespassing · velvet rope · authorization · digital certificate · two-factor authentication · key · restricted · biometric · retinal scan · encryption · need-to-know · policy · audit trail · clearance · security clearance
- Biosafetybiosafety, biocontainment, containment suit, biohazard, biohazard symbol
controlled accessopen access
Free public scholarly content
free access · public access · free passage · universal access · open-door policy
controlled accessopen access
Free public scholarly content
public domain · unrestricted · open source · open data · Creative Commons