Collaboration Diagram Elements

See Also

The following table describes the elements that you can add to Collaboration diagrams. The elements are grouped by Modeling Palette section.

Element Icon Description
Basic Section
Lifeline An individual participant in the Interaction. While Parts and structural features may have multiplicity greater than one, Lifelines represent only one interacting entity.
  • To re-order Lifelines, simply drag a timeline to a new location.
Actor A role played by users in your system.
Connector A specified link that enables communication between two or more instances.
Dependencies Section
Dependency The relationship between two elements whose definitions depend on one another in such a way that changes to one can result in changes to the other. For example, when one class mentions another as an operation parameter, or as part of its data, the two classes exhibit dependency.
Realize A semantic relationship between classifiers - one classifier specifies a contract that another classifier guarantees to carry out. These relationships are used in two places: between interfaces and the classes that realize them, and between use cases and the collaboration that realize them.
Usage A dependency in which one element (the client) requires the presence of another element (the supplier) for its correct functioning or implementation.
Permission A dependency that signifies granting of access rights from the supplier model element to a client model element, in which the client requires access to some or all of the constituent elements of the supplier.
Abstraction A boundary relative to the perspective of the viewer. The essential characteristics of an entity that distinguish it from all other kinds of entities.
Comments Section
Comment A Notepad notation. Use Comments to record information for a element or link in a diagram. This information is not included in generated code but is for information only. Each Comment can contain unlimited text, and be numbered. You can also define a stereotype, and enter a noted element.
Link Comment The connection between the comment element and the associated element.
See Also
About Collaboration Diagrams
Diagram Elements

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