Monitoring Business Objects end user activity

Hi,

I have a requirement to capture the BO end user activity.

I want to see which user is running what queries against the database. our database is oracle.

This cannot be achieved using the Auditing in BO. In oracle DB, we see the reports are using the DB user mentioned in the Universe connection.

I have gone through this blog:

http://blog.whitehorses.nl/2013/02/25/monitoring-business-objects-end-user-activity-using-oracle-enterprise-manager/

Any ideas..

-Praveen