thanks for your reply.
if the bpmn2 process editor and the web process editor dosen`t compatible freely, so the guvnor just manager the process definitions and the rules assets,it is too havery to bring the guvnor into our project,the web process designer is so wonderful tools,if it is as what you say , i feel so sad!
can anybody give me some suggestion about the problem i come across above, i want to use both the web process editor and the jbpm2 process editor to designer one process, if the work compatiblly, so the devloper can modify the process definition by opening browser not with the eclipse .