Dietmar Aust is working as a freelance consultant in Germany, focusing on Oracle Application Express and Oracle XE. Starting in 1997, he worked for three years as a consultant for Oracle in Germany. Since then, he has helped numerous leading companies in Germany to successfully deliver web-based applications based on the Oracle product stack, especially the Internet Application server - Oracle Portal and Reports. He is a regular presenter at various Oracle conferences (ODTUG, OOW, DOAG), conducts training classes on APEX, and co-authored a book on APEX best practices in German (Oracle APEX und Oracle XE in der Praxis), as well as Expert Oracle Application Express in English. He was awarded Oracle ACE status in 2012. Find out more about him at http://www.opal-consulting.de or http://daust.blogspot.com.