Toon Koppelaars, Centraal Boekhuis
Toon Koppelaars studied computer science at the University of Technology in Eindhoven, The Netherlands. He is a long-time Oracle technology user, having used the Oracle database and tools software since 1987, version 4. During his career he has been involved in both application development (terminal/host in the early days, GUI client/server later on, and J2EE nowadays), as well as database administration. His interest areas include performance tuning (ensuring scalability, SQL-tuning), architecting applications in a database-centric way, and database modeling. Within the database modeling area, the mathematical specification and robust implementation of database models including the data integrity constraints (often referred to as business rules) is one of his special interest areas.
He is currently employed as a senior IT architect at Centraal Boekhuis B.V., a well known Oracle shop in The Netherlands. Toon is also a frequent presenter at Oracle related conferences.