Adding Existing Web Services to Diagrams

You can add an existing web service based on a Java class to a class diagram by dragging and dropping it.

To add an existing web service to a diagram:

If necessary, create a new diagram.
In the navigator, drag the web service container (the container for the interface class and WSDL document) and drop it onto the diagram
OR
Choose Model | Add to Diagram to display the Add to Diagram dailog. Then expand Web Service Components, and choose the web service.