access barred signal
access category
access code
access control
access control device (ACD)
access coupler
access denial
access-denial probability
access-denial time
access digit
access failure
access hierarchy
access hole
access key
access level
access list
access memory
access menu
access method
access mode
access model
access originator
access path
access period
access permission
access phase
access plan
access point
access port
access privilege