I found a nice series of articles about UML and XMI. If you are interested take a look at it: http://www-106.ibm.com/developerworks/xml/library/x-wxxm23/ http://www-106.ibm.com/developerworks/library/x-wxxm24/ Sebastian -- ONE FAMILY! Leipzig 2012 - Olympic Summer Games http://www.leipzig2012.com/