Model Reference Properties

Reference properties as unidirectional associations

A reference property, like the one in the example below, can be modeled in a UML class diagram. In the diagram, the reference property will appear in the form of an association end owned by its domain class. This is visualized with the help of a small filled circle also called a dot. To perform this visualization, we must connect the domain class and the range class of the reference property with an association line, placing an ownership dot at ...