Wellington L. S. da Silva has been working with servlet-based development since their introduction in 1997. He has been actively involved in many open source projects throughout the years. Since 1999, he has been a consultant to the United Nations Food and Agriculture Organization at Rome where he is developing a number of web applications. In addition, Wellington works actively with the TOMCAT Servlet Container and platform project. Has been also an active member of the Jakarta STRUTS Project and has developed the FBBuilder tool for STRUTS and the AAS application, discussed in the book, within that framework. Wellington has over 14 years of client-server application development experience in SQL, Delphi-Pascal and C/C++ for the Windows platform, and with popular databases such as DB2 and Oracle. He has collected prizes and nominations for his work in network development and administration in the late 80's and early 90's. The last 6 years have been dedicated to web collaborative applications development.