As replied in your other post, GPD4 uses the BPMN graphical notations, not an explicit BPMN/XPDL/.... processdefinition, but JPDL4. XPDL was one of the formats that could be used with BPMN, as is according others, BPEL. This is all not trivial btw as you can read in many posts in different forums/blogs There is however a company that did implement XPDL on top of the PVM http://wiki.bonita.ow2.org/xwiki/bin/view/Main/WebHome with their own designer. Regarding jBPM, we try to follow the developments of executable BPMN (BPMN2) and might develop something in that direction if there are enough requests for it. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4243052#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...