End-to-end metrics bridge the gap between the developer and the DBA, the Developer and Oracle, and the DBA and the application.
Most applications today are n-tiers using a connection pool on the application tier, which makes them very hard to trace. With a little bit of collaboration between developers and DBAs, tracing can be turned on very easily for your specific application module, a specific user, IP-address, customer, or any other metric of your choice.
End-to-end metrics can also be helpful in your development process, and in the day-to-day monitoring of your application.
A live Q&A session with Lasse Jenssen follows the presentation.