Permission

A permission is the approval or consent given to someone or something to perform a specific action, access certain information, or use a resource. Permissions define what a person or system can and cannot do.

A permission may be assigned to, or revoked. A permission to grant permission is called a grant.

There are permissions to access a database or a server; there are permissions to access files. Permission may also be related to visibility, which is the permission to access the internals of an object, depending on the calling contewxt.

Related : File, Visibility, Database, Access Control List (ACL), Authorize, fopen(), Role Based Access Control (RBAC)