BPMN2 — Simplify Use of Callable Elements

Callable elements can be simplified. For example, a Global Choreography Task can be a sub-type of Choreography. It would be defined as an "empty" Choreography. A Global Task could be a sub-type of Process, with the same restriction.
By doing this, then calling elements within the diagram can be more specific about what kind of element they can reference. Thus, a CallActivity can reference a Process and a Call Choreography can reference a Choreography, instead of both referencing Callable Elements with an text based restriction as to what kind of callable element can be referenced.

The resolution of issue 14654 will resolve this issue
Disposition: Duplicate