BPMN11 — BPEL->BPMN mapping problem

variables having 'message' type are imported as property sets,
reference to message type is lost

• it is hard to model variable as input and assign result of
  <invoke> to variable. If passing arguments can be modeled as sequence of
  assignments, receive part is impossible to model clearly--assignment is
  not symmetric, from is expected to be an expression and there is no way
  to define reference to service call result in expression as BPEL don't
  need it

Suggested Resolution:
Close, No Change: This issue is out of scope for the RTF and will be addressed by the response to
the BPMN 2.0 RFP.
Revised Text: None
Disposition: Closed, deferred