Default Windows security groups

The following Windows security groups are created by default on the AVEVA Historian computer. Use these groups to assign different levels of database permissions to users.

• aaAdministrators

• aaPowerUsers

• aaUsers

• aaReplicationUsers

Each group is automatically configured to be a member of the SQL Server database role with the same name. For example, the aaAdministrators Windows security group is a member of the default aaAdministrators SQL Server database role. If you add Windows users to the aaAdministrators security group, they will automatically be given permissions of the aaAdministrators SQL Server database role.