Association type (property)
For automation interface information about the Association Type property (Navigation through the automation interface), see the automation interface topic for an Association in the Related Topics.
This property specifies the direction of an Association:
Start to end
End to start
Bi-directional
None
The default Association Type is determined by which method you use to create the Association:
If you create the Association through the Association toolbar button, the Association Type is Bi-directional.
If you create the Association through the Uni-directional Association toolbar button, the Association Type is Start-end.
If you create the Association through the context menu of a Class, Data Type, Interface or Signal, the Association Type is Bi-directional.
This property is set on the Options tab of an Attribute's Property Pages.
Start to end
This property specifies that the access of the Association runs toward the end item. On a Class Diagram, an Association of type Start to End appears as follows, with the arrow pointing toward the end item.
End to start
This property specifies that the access of the Association runs toward the start item. On a Class Diagram, an Association of type End to Start appears as follows, with the arrow pointing toward the start item.
Bi-directional
This property specifies that the access of the Association runs in both directions. On a Class Diagram, an Association of type Bi-directional appears as follows:
None
This property specifies that no direction of access is specified for the Association. On a Class Diagram, an Association of type None appears as follows:
The following section provides information about the items and diagrams for which Association Type is a property. For more information about an item or diagram, click it.
Is property of