In UML modeling, you can
specify the services that instances of a component offers to their
clients.
Before you begin
A diagram must be open in the diagram
editor and it must contain at least one component and one interface.
About this task
To specify a provided interface, in the diagram editor, click
an interface and drag it over the Provided Interfaces compartment
of the component.
Results
If the component is showing the external view, the provided
interface is displayed as a ball attached to the component shape.
If the component is showing the internal or class view, the interface
is displayed in the Provided Interfaces compartment.