Access Control is a very useful system to have in place, especially in a business environment. The system can be used as an attendance tool and also act as a safety feature in emergency situations.
It can also restrict access to certain places, rooms, doors, and areas which makes it an extremely valuable tool for site security.
Most systems can be remotely monitored off site, which means restricted areas, credentials, users can be changed at the touch of a button. New access control systems can also integrate with older systems like intruder alarms, fire alarms etc to give you total control of your site.