Access control entry is the process of using credentials, such as key cards, smartphones, or biometrics, to gain access to an area. Security teams and property managers will use access control entry at parking gates, outside buildings, offices, conference rooms, building gyms, and more. When a credential is presented to the credential door reader, electronic information is passed through the access control system. The credential signal is deciphered by the system’s database. If the credential information matches, then authorization is granted, and the door opens.