Access control is the set of rules and tools that decide who can get into a system, which information they can see and what they are allowed to do. It combines identifying the person, verifying they are who they claim to be with methods such as MFA, and granting only the permissions their role requires, whether in an office or in an application.
Go deeper on the TecnetBlog: Access controls and how to implement them
access management, logical access control, physical access control, permissions, DAC, MAC