Adding objects to a sequence diagram
You add objects along the top of the Sequence Diagrams:
• Actors must be added to the left of the System Boundary.
• Instances, Parts and Ports can be added to the left or right of the System Boundary.
• Interface Devices, Packages and Subsystems must be added to the right of the System Boundary.
You can add Ports to a Sequence Diagram only by dragging them from an appropriate pane. Use the Parts pane to view Ports in context. On a Class or Interface owned Sequence Diagram, you can create Parts on the owning Class or Interface through the diagram.
To add objects to a sequence diagram:
1. Open the Sequence Diagram.
2. Click the appropriate button from the Sequence Diagram tab:
Actor
Instance
Interface Device
Package
Part
Subsystem3. To add a new item to the Sequence Diagram:
◦ Click the Sequence Diagram in an appropriate place.
To add an existing item to the Sequence Diagram:
a. Right-click the Sequence Diagram in an appropriate place.
b. Select the required item, and then click OK.
Modeler adds the item to the diagram.
Alternatively:
• Drag an item from an appropriate pane to the diagram.
• For a Class or Interface owned Sequence Diagram, you can drag a Class, Data Type, Interface or Signal to the diagram and Modeler will create a Part on the owning Class or Interface that uses the dragged item as its type.
Note that when you create a Part: if the Part is untyped, Modeler creates and Attribute; if the Part is typed, Modeler creates a Role.