Assigning Users and Groups to Roles 
Prerequisites
The administrator role is assigned to you.
Procedure
The procedure is the same as for assigning roles to users and groups except that you choose Edit for a role in the first screen. In the second screen, you choose the users and groups that you wish to assign to the role.

Result
You have assigned users and groups to a role.
When the user logs on, he or she will see the top-level navigation and portal pages defined in the roles assigned to him or her.