To draw a Message Flow between two elements or Pools, do one of the following
On the Collaboration diagram pallet, click Message Flow button and connect appropriate shapes.
Select the Pool header and on the Smart manipulator toolbar, click the Message Flow button.
Warning
A Message Flow must connect two different Pools or inner elements of different Pools.
To create a new Message for a Message Flow, which is typed by a classifier, by using drag and drop operation
Select the classifier (Class, Input Set, Output Set, or Error) in the Containment tree and drag it to a Message Flow on a Collaboration diagram.
To create a Message for a Message Flow from the Smart Manipulator toolbar
Note
You can create a Message in a BPMN Process, Collaboration, Choreography, or SubProcess element.
On the diagram pane, select a Message Flow path and on the Smart Manipulator toolbar, click the Referenced Messages button. The Select Message dialog opens.
Select a Collaboration where you want to create a new message and click the Creation Mode button.
Select a Collaboration element and click the Create button.
Click OK.
To change a Message display mode
Right-click a Message Flow and from the shortcut menu select one of the following:
Show Message and select a message display mode.
Symbol(s) Properties and select the needed Show Message property value.
To change direction of Message Flow
Right-click the Message Flow and from the shortcut menu, select Refactor > Reverse Direction.
