A mechanism that implements access control for a system resource by enumerating the identities of the system entities that are permitted to access the resources.
A mechanism that implements access control for a system resource by enumerating the identities of the system entities that are permitted to access the resources.
A mechanism that implements access control for a system resource by enumerating the system entities that are permitted to access the resource and stating, either implicitly or explicitly, the access modes granted to each entity. (Compare: access control matrix, access list, access profile, capability list.)