UML 2.0 Use Case Diagram Elements

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The following table lists the elements of UML 2.0 Use Case diagrams that are available using the Tool Palette:

UML 2.0 Use Case diagram elements

Icon	Element	Name	Type	Comment
		Actor	Node
		Use Case	Node
		Subject	node
		Association	Link
		Extends	Link
		Includes	Link
		Generalization	Link
		Node by Pattern	Node	Opens Pattern Wizard
		Link by Pattern	Link	Opens Pattern Wizard
		Note	Annotation
		Note Link	Annotation link	You see the note connected by the note link with another modeling element.
		Image	Illustration	The Tool Palette command puts on a diagram only the empty frame of the image placeholder. To render an image in this frame: Select this image placeholder. In the Image path property of the Object Inspector, specify the file of the image to be rendered. Here you see the Embarcadero image, rendered in the frame of the image placeholder.
		Image Link	Illustration link	You see the Embarcadero image connected by the image link with another modeling element.
		Extension point	Node	Create an extension point in a use case to specify a point in the behavior of a use case, where this behavior can be extended by the behavior of some other use case. That is, an extension point refers to a location within a use case where you can insert action sequences from other use cases. The Extension point element is available on the context menu of a use case, in the Diagram View and Model View. See Creating an Extension Point. An extension point consists of: A unique extension point name within the Extension Points compartment in the use case. In the picture, this is the set priority extension point in the compartment of the base Use Case use case. An extend relationship (dependency link), stereotyped as <<extend>>, to the use case that extends the behavior of the first use case. In the picture, this dependency link has the (set priority) label and the extension use case has the name managing priorities.
		Activity	Node	This element is available on the context menu of a use case.
		Interaction	Node	This element is available on the context menu of a use case.

See Also

• Use Case Diagram Procedures
• UML 1.5 Use Case Diagrams