Usage is a kind of dependency that indicates that one element requires the presence of another element for its correct implementation or functioning. The notation for a usage dependency is a dashed arrow labeled with the stereotype <<uses>>. A usage can be stereotyped further to indicate the exact nature of the dependency, such as calling an operation, granting permission for access, and so on.
Name a usage relationship and add other property values
Open the element's UML Properties dialog box by double-clicking the icon that represents the element in the tree view or the shape that represents the element in a diagram.
Control which property values display on a shape in a diagram by right-clicking the shape, and then clicking Shape Display Options. In the UML Shape Display Options dialog box, select and clear options to display or hide property values.
Control which property values are displayed on the usage relationship
Right-click the shape, click Shape Display Options, and then select or clear options to show or hide values.
Navigate to other views of the usage relationship
Right-click the shape, click Views, select the view you want, and then click OK.