Physical security refers to measures that are designed to protect buildings, facilities, personnel, stored information and any other physical element and offers guidance on how to design structures to resist potentially hostile acts. Physical security can be as simple as a locked door or as elaborate as multiple layers of barriers, sensors, surveillance systems and/or armed security.
Access Control refers to the measures used to keep unauthorized persons out. Keeping unauthorized persons out is the first measure in protecting physical elements as well as personnel. Access control is the number one thing to be considered when protecting our children at schools.