Access control
Access control is a condition in which the common-law rights of property owners and others to access, light, air, or view in connection with a public road are controlled by public authority by means of physical construction, legal restrictions, toll requirements, or other limitations. In computing, access control is a process by which users are granted access and certain privileges to systems, resources or information [Merriam-Webster].
Logical access control systems perform identification, authentication and authorization of users and entities by evaluating required login credentials that can include passwords, personal identification numbers, biometric scans, security tokens or other authentication factors. Multifactor authentication (MFA), which requires two or more authentication factors, is often an important part of a layered defense to protect access control systems.
Access control models have a subject and an object. The subject - the human user - is the one trying to gain access to the object - usually the software. In computer systems, an access control list contains a list of permissions and the users to whom these permissions apply. Such data can be viewed by certain people and not by other people and is controlled by access control. This allows an administrator to secure information and set privileges as to what information can be accessed, who can access it and at what time it can be accessed [Technopedia].
Access control. Merriam-Webster. Retrieved from: https://www.merriam-webster.com/dictionary/access%20control;
What is Access Control? Techopedia. Retrieved from: https://www.techopedia.com/definition/5831/access-control.