So you prefer 1, while I prefere 2. Using 1 makes it impossible to generate any good client since anything is allowed. In the second version, you can have defined complex types per command. I prefere that one. Errorhandling is more simple since it comforms to an xsd or not. We do not have to program the checking of the '[any mixed content]' in relation to the name. So therefor I mention an XSD (and WSDL) . I tried this with the eclipse webservice explorer and could control the process from there with explicit commands and corresponding fields. JSR-109 seems perfectly capable for this. No DOM parsing needed if you use example 2 and not one. Maybe we should flip a coin or let Alex decide. He is the webservice guru ;-) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3968042#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...