ACL
Access Control Lists, or ACLs ("ackles"), are a way to control access to objects on an OpenVMS system by granting various types of access to holders of a specific identifier rather than based on a UIC. It is more flexible but also more complex than UIC Protection, so system managers and security administrators use ACLs more often than general users.
Access Control Lists are attached to system objects such as files and queues and consist of Access Control Entries.
