Here are the definitions of the user roles on the SSL Visibility Appliance:

• Manage Appliance: Manage platform (date,time,network,etc), manage alerts, manage users, view system log, view statistics
  
• Manage Policy: Manage policies, view and export SSL session log, view PKI store, view statistics
  
• Manage PKI: Manage PKI store, view users, edit other Manage PKI users, view statistics
  
• Auditor: View system log, view appliance configuration, view users