anonymous wrote : but of course some are more flawed than others....If with flawed you mean more complex to realize end-to-end I agree. https almost always is end-to-end, smtp(s) almost never. Signing messages and/or encrypting overcomes this, but is difficult to enforce when responding. That is one of the reasons I think all this belongs outside jBPM. I myself are working (in the few lost ours I have) on an ebXML 2.0/3.0 b2b channel which is an additional one that for one reason or another is not hard to envision outside jBPM View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4136961#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...