Toon has been part of the Oracle eco-system since 1987. He is currently a member of Oracle's Real World Performance team. The RWP-team troubleshoots application performance issues in and around the DBMS. The way applications currently use (or rather, abuse) the DBMS, is often at the root of these performance issues. Prior to joining the RWP team, Toon has been mainly involved in database application development. His special interests are: architecting applications for performance and scalability, database design, and business rules / constraints modelling. He is a long-time champion of the Thick Database paradigm.