where exactly the project's drivers data is stored in PS databases.

Hi 

I am working on Project server 2010.

Wanted to know where exactly the project's drivers data is stored in PS databases.

Suppose I have created 5 drivers in Drivers library in PWA and I am selecting these drivers for a project in a PDP then where can I find the data in database. I do not see the values in the EPMProject_UserView (association of proj GUID and drivers GUID). 

Where does these values being stored when Project and Portfolio component values are selected.

Thanks in advance.

Sudhir