UML Distilled: A Brief Guide to the Standard Object Modeling Language, Second Edition

Combining Component and Deployment Diagrams

Although you can draw separate component and deployment diagrams, you can also place the component diagram on the deployment diagram, as I have done with Figure 10-1. You can do this to show which components run on which nodes.

So in the diagram, the Liver Unit UI and the Liver Unit Client Facade both run on a Windows PC. The Liver Unit UI is dependent on the Liver Unit Client Facade, since it calls specific methods on the facade. Although the communication is two-way, in the sense that the Facade returns data, the Facade is not aware of who is calling it and is thus not dependent on the UI. In contrast, in the communication between the two Health Care Domain components, both are aware that they are ...