Ternary role (dictionary item)
For automation interface information about a Ternary Role, see Ternary role (automation interface).
A Ternary Role links a Ternary Association with a Class, Data Type, Interface or Signal, and specifies the multiplicity of the relationship at the Class, Data Type, Interface or Signal end.
You can create a Ternary Role through the Class Diagram. You create a Ternary Role in the same way as you create an Association; however, when you attempt to add an Association that links a Ternary Association and a Class, Data Type, Interface or Signal, Modeler creates a Ternary Role.
When used on a diagram, a Ternary Role's notation is as follows:
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Ternary Role and name
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Multiplicity of zero or one.
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Multiplicity of zero or more.
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Multiplicity of only one.
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Multiplicity of one or more.
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Multiplicity of tbd (to be decided)
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User defined multiplicity, in this case 63.
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In the Modeler panes, a short-cut symbol 
on the Ternary Role's icon indicates that the item is a stub.
on the Ternary Role's icon indicates that the item is a stub.
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If you select the UML\Ternary Roles folder in the Dictionary pane, the Contents pane displays the following information about each Ternary Role in the model: Ternary Association.
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The following sections provide information about how a Ternary Role is used in the model. For more information about a property, item, model part or diagram, click it.
Properties
In addition to the standard properties, a Ternary Role has these properties:
• Multiplicity (Multiplicity Text through the automation interface)
Owned by
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A Ternary Role is owned jointly by the Ternary Association and the Class, Data Type, Interface or Signal it is associated with.
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Owns
Dependency — The Dependency is owned jointly by the Ternary Role and the other associated item. The access permissions you have to a Dependency are determined by the access permissions of the dependent item.Defined in these parts of the model
Shown on these diagrams
Can be linked to these dictionary items
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Like most other items in a Model, a Ternary Role can be linked to an Activity Partition, Comment, Frame Box, General Node, General Flow, General Flow Diagram Node, Constraint (applied), General Flow Diagram Flow or Swimlane.
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