BPMN2 — Relationship navigation (both in MM and XSD)

Beta 1, Section 8.4

Currently the MM contains a bidirectional relationship between Interface and ServiceRef. This is also represented in the XSD, where the Interface complexType has an element that references a ServiceReference, and the ServiceReference complexType has an element that references an Interface.

In the Samples meeting, it was raised that the Interface->ServiceReference relationship was not needed in the XSD. This discussion resulted in several outstanding questions:

• If it doesn't belong in the XSD, should it be in the MM?
• Tool vendors would find this convenient to have. But is that an implementation issue?
• This likely isn't the only case. Need to have a broader discussion.
• What is the purpose of the MM? How are we positioning it?
• If the MM is for portability, then should the arguments used against the XSD also apply to the MM?

• This issue has been carried over from the BPMN 2.0 submission team
• Ongoing implementation projects do not indicate this is an issue. Close with no changes to the specification (as it is not a problem)
  Disposition: Closed, No Change