Access control systems are an important element of security systems to protect property, people and resources. Door access control systems determine who is authorized to enter a property or a restricted area within a property and provide various techniques to manage and control access. Access control security is used in many different types of building, including campuses, office blocks, commercial buildings, multi-tenant apartment buildings, industrial complexes, condos, gated communities, schools and colleges, airports, stadiums and government buildings. This article explains what access control is and why it’s important to security. You’ll also learn about the benefits and use cases for access control, as well as access control policies and the components of an access control system.

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