Also You could take a look at Admin Guide in Auditing section starting form page 639.
http://help.sap.com/businessobject/product_guides/boexir4/en/xi4sp5_bip_admin_en.pdf
Also You could take a look at Admin Guide in Auditing section starting form page 639.
http://help.sap.com/businessobject/product_guides/boexir4/en/xi4sp5_bip_admin_en.pdf