Access control is a solution that is fundamentally necessary in all scales of security and is a requirement in all fields. It is frequently employed at locations that strive to physically safeguard property or information from unauthorized people, including research institutes, data centers, secure zones, factories, apartments, offices, construction sites, hospitals, schools, and banks.

Who is permitted to enter or exit, where they are permitted to exit or enter, and when they are permitted to do so are all determined by an access control system.