Access control is focussed on controlling who has access, e.g. to an office or facility. This is typically achieved by restricting access by certain types of groups or access levels. With access control visitors, employees, executives, freelancers or employees can easily and securely access. There are different fields of access control such as network access control, logical access control and physical access control. Unlike open access, access control provides control and security to address security and convenience to keep your business running securely.