Access control and management systems (ACS) delimit the rights of access to the premises (zones, territories) of certain categories of persons and restrict the access of persons who do not have such rights. ACS is not only a set of access structures, controllers, readers, but also a complex set of organizational and technical measures, the access control process in which is automated and practically does not require the participation of personnel. The access control system helps not only to ensure the safety of material assets, the safety of staff and visitors, but also to organize the accounting of employees' working time, as well as streamline the order of movement of people around the facility.

"Antipassback" is a functionality of the system that excludes the passage of two employees with one card, or the passage without using an access card.