A first BPMN 2.0 Collaboration Model

The basic elements of a Collaboration Model are Participants, that are represented as Pools, Message Flows between them and Messages.

For example there could be Collaboration “Organize Venue for Runway Show” with a Participant “Runway Show Management” and a Participant “Venue Provider”. There could be a message “Booking Request” and a message “Booking Confirmation”. A first Message Flow “Requesting Booking” (name not written in the diagram) would have a source RunwayShowManagement and a Target VenueProvider and would have a message BookingRequest. A second Message Flow “Confirming Booking” (name not written in the diagram) would have a source VenueProvider and a Target RunwayShowManagement and would have a Message BookingConfirmation.

This is a very simple model, which does not yet define sequences of the messages, nor does it yet show processes inside the pools. However the basic elements are present.

There follows an example of a possible instance model in an intuitive descriptive language.

Definitions
targetNameSpace http://www.bpmnforum.net/
{
    Message
       ID BookingRequest
       Name "Booking Request";

    Message
       ID BookingConfirmation
       Name "Booking Confirmation";

    Collaboration
       ID collaboration_0
       Name "Organize Venue for Runway Show"
    {
        Participant
          ID participant_1
          Name "Runway Show Management";

        Participant
          ID participant_2
          Name "Venue Provider";

        MessageFlow
          ID mf_0
          Name "Requesting Booking"
          targetRef participant_2
          sourceRef participant_1
          messageRef BookingRequest;

        MessageFlow
          ID mf_2
          Name "Confirming Booking"
          targetRef participant_1
          sourceRef participant_2
          messageRef BookingConfirmation;
    };
}