Describing Exchanges
Creating an exchange diagram (BPMN)
An exchange is described by an exchange diagram presenting the sequence flow of messages exchanged.
To create an exchange diagram:
1. Right-click an Exchange and select New > Exchange Diagram (BPMN).
If you work with
MEGA Windows Front-End, you should select "Exchange Diagram (BPMN)" from a specific dialog box. Confirm that the
Diagram initialization check box is selected, and click
Create.
The diagram opens. The exchange frame is positioned and the two roles (Consumer and Supplier) are created.
Creating a message flow with content
You must specify the message flows and their content exchanged between the two exchange roles.
A message flow represents circulation of information within an exchange contract. A message flow transports its content.
The content designates the content of a message or an event, independent of its structure. This structure is represented by an XML schema linked to the content. A content may be used by several messages, since it is not associated with a sender and a destination. There can be only one content per message or event, but the same content can be used by several messages or events.
To create a message flow and its content:
1. In the exchange diagram, click the Flow With Content button.
2. Click the role that represents the message flow sender and, holding the mouse button down, draw a link to the message flow recipient.
The Creation of Message Flows With Content dialog box opens.
3. In the Content drop-down list, select the content you wish to associate with the flow.
The message flow is displayed with its content in the diagram.