Hi Lisha,
Also check the following important wikis and help links to learn more about this authorization object:
CRM_ORD_PR
http://wiki.scn.sap.com/wiki/display/SMAUTH/CRM_ORD_PR
Process Flow of the Authorization Check in Business Transactions
https://help.sap.com/saphelp_crm60/helpdata/en/48/a44236ceb873e8e10000000a42189b/content.htm
'Welcome to "SAP Solution Manager - Security and Authorizations " Wiki' can be found at:
http://wiki.scn.sap.com/wiki/display/SMAUTH/Home?original_fqdn=wiki.sdn.sap.com
At the bottom of the Authorization object page, there are child pages which describe in good detail the various objects and their settings.
ITSM configuration of roles and authorizations:
http://wiki.scn.sap.com/wiki/display/SAPITSM/Configuration+and+Administration+of+ITSM?original_fqdn=wiki.sdn.sap.com
Thanks
Vikram