For you who read this blog on occasion, please help.  I am looking for any valid BPMN diagrams that can not be represented as standard XPDL.  Many people understand that XPDL is a superset of BPMN, meaning that everything from BPMN can be represented as XPDL, while the converse is not necessarily true.  There are, however, a few vocal opponents who claim that XPDL can not be used to store BPMN.

OK.  Both BPMN and XPDL are complex subjects.  Continue reading →