CiscoWorks Common Services enables you to define which roles are assigned to each user. By changing the role definition for a user, you change the types of operations this user is authorized perform in Security Manager. For example, if you assign the Help Desk role, the user is limited to view operations and cannot modify any data. However, if you assign the Network Operator role, the user is also able to modify the configuration archive. You can assign multiple roles to each user.