Collaboration

A collaboration shows message exchanges between participants. A collaboration contains at least two pools representing the participants. A pool may include a process (white box) or may be shown as a black box with all details hidden. The message exchanges between the participants are represented by message flows that connect two pools (or the objects within the pools). Only one pool may be represented without a boundary.

Class	BPMN attribute name	ARIS implementation
Collaboration	inherits from BaseElement and InteractionSpecification	Model type: BPMN collaboration diagram (BPMN 2.0) (MT_BPMN_COLLABORATION_DIAGRAM)
	name: string	Attribute type Name of the BPMN collaboration diagram (BPMN 2.0)
	choreographyRef: Choreography [0..1]	Not considered in the 1st version of the BPMN 2.0 implementation.
	conversationAssociations: ConversationAssociation [0..*]	The relationships to conversations are represented by occurrence copies of participants (OT_BPMN_POOL; ST_BPMN_POOL_1), occurrence copies of message flow connections and the assignment of a BPMN collaboration model (BPMN 2.0) to the object type Conversation (OT_BPMN_CONVERSATION).
	conversations: Conversation [0..*]	BPMN collaboration diagram (BPMN 2.0) assigned to the object type Conversation (OT_BPMN_CONVERSATION)
	artifacts: Artifact [0..*]	Artifacts.
	participantAssociations: ParticipantAssociations [0..*]	The relationships to participants are represented by occurrence copies of participants (OT_BPMN_POOL; ST_BPMN_POOL_1)
	messageFlowAssociations: Message Flow Association [0..*]	The relationships to message flows are represented by occurrence copies of message flow connections (and the involved participants).
	IsClosed: boolean = false	Attribute type Is closed in the attribute type group BPMN 2.0 attributes of model type the BPMN Collaboration diagram (BPMN 2.0).