business process modelling notation symbols

You can create activities in collaboration and process diagrams.ĭata are physical or information items that are created, manipulated, or otherwise used during the execution of a process. You can create gateways in collaboration, process, and choreography diagrams.Īctivities are work that is performed within a process. Gateways control the sequence flow of the process, and can merge or split the flow as dictated by the gateway conditions. You can create events in collaboration, process, and choreography diagrams. Events include the start and end of an activity, and any other intermediate happening (such as a change of state or receipt of a message) which will affect its sequence or timing. The name of the choreography task and each of the participants are displayed in the various bands of the its symbolĪn event is something that happens during the course of a process. In choreography diagrams, participants do not have a separate symbol but are displayed on the top or bottom band of the choreography task symbol.Ī conversation node is a hexagon symbol in a conversation diagram that links two participants and regroups a set of message exchanges that share the same correlation.Ī choreography task represents an interaction, a set of message exchanges between two participants. Participants are represented as swimlanes in collaboration and process diagrams and as square nodes in conversation diagrams. Participants represent companies, departments, or roles who are involved in a collaboration. PowerDesigner supports collaboration diagrams and process diagrams as standard business process diagrams with a BPMN-specific toolbox. A process diagram analyzes the sequence flow in a single process in a participant (which can be shown or implicit). Each pool contains an implicit process with a start event and one or more end events. Collaboration and Process Diagrams (BPMN)Ī collaboration diagram analyzes the sequence flow of processes and the exchange of messages between participants (represented as swimlanes and pools).A choreography diagram can be used to expand and analyze in detail the exchange of messages associated with a conversation node in a conversation diagram. You cannot create or display processes or choreographies in this diagram.Ī choreography diagram is used to analyze how participants exchange information to coordinate their interactions. A conversation diagram focuses on the communications between participants.

Business process modelling notation symbols