I don't understand why orion deployment descript need ejb-ref-mapping ? The ejb-link in J2EE DD just has the same function as ejb-ref-mapping in Orion DD. I found the ejb-link broken, just only ejb-ref-mapping works. I really cant understand why ejb-ref-mapping is needed? and why ejb-link borken? THIS MY SECOND TIME ASK THIS QUESTION. NOBODY HAS THE SAME QUESTION? Regards., Jen Hsien Huang