****************
Sorry, I must re-formulate so that I am sure I understand what you are saying :
a- the jBPM BPMN2 Editors Designer you mentioned is the web designer provided with jBPM 5.3.0 Full Package
b- Everything available in the jBPM web designer is totally executable by the jBPM runtime
c- The last step, there is nothing that the jBPM runtime can execute which is not available in the web designer (bijective function)?
*******************
a) yes
b) yes if you add correct execution semantics in your business process..otherwise it won't be "Executable" :)
c) not necessarily..we try to stay as close as possible, e.g. as we add more features into the runtime, we update the tooling as fast as possible to utilizy the new functionalities of the runtime..and so on. There could be cases there a version of Designer does not have a certain recently added feature of the runtime, but you can then get it in the next Designer release or build Designer from master branch when the feature has been added right away.