What If BPMN Were a Modeling Language?
Lacking support for fundamental concepts like human tasks and subprocesses, BPEL has become a favorite whipping boy of BPM vendors and consultants. But for all its faults, BPEL enjoys something that BPMN advocates can only dream about: an XML storage and interchange format that makes sense. It’s often said that BPEL is an XML language not a graphical notation, but the reality is that graphical BPEL design tools all use more or less the same notation, based on a simple mapping to native BPEL language constructs: Receive, Reply, Invoke, etc. BPMN has a standard notation, but still lacks a standard storage and interchange format consistent with the fundamental goals of BPMN itself.