User accounts are created so that users can be assigned a username and password to access CC-SG.
A User Group defines a set of privileges for its members. You cannot assign privileges to users themselves, only to user groups. All users must belong to at least one user group.
CC-SG maintains a centralized user list and user group list for authentication and authorization.
You can also configure CC-SG to use external authentication. See Remote Authentication.
You must also create policies for access that you can assign to user groups. See Policies for Access Control.