David Salter is an enterprise software architect who has been developing software professionally since 1991. His relationship with Java goes right back to the beginning, using Java 1.0 for writing desktop applications and applets for interactive web sites. David has been developing Enterprise Java Applications using both the J2EE standards and open source solutions for the last five years. David runs the Java community web site, Develop In Java, a web site for all levels of Java developers. David co-authored the book Building SOA-Based Composite Applications Using NetBeans IDE 6.

Mario Pérez Madueño started developing applications for Zeus Sistemas in 1995 using Borland C++ Builder. He graduated in computer science in 2006 and is still studying to obtain a Master's degree in the EHEA, although what he actually would like is the Java programming with passion graduate.

Mario also works most recently as software engineer for Altra Software, helping to develop Java desktop and EE5 applications.

Nothing attracts as much enthusiasm as an IDE for the developer, so Mario is a NetBeans fan. His lastest contributions have been in the NetBeans 6 Spanish localization process and currently as NetCAT 6.5 backup team member.

As technical reviewer, Mario also worked for Packt Publishing on the title Building SOA-Based Composite Applications Using NetBeans IDE 6.