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+The last UML structural diagram I want to discuss
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+is the deployment diagram. The deployment diagram provides a static
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+deployment view of a system, and unlike previous diagram,
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+it is about the physical allocation of components to computational
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+units. Think, for example, of a client-server system in
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+which you'll have to define which components will go on
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+the server and which component will go on the
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+client. For deployment diagram, the nodes correspond to computation unit;
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+for example, a specific device. And the edges indicate communication
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+between these units. Also in this case, I'm going to illustrate deployment
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+diagrams using an example for our course management system. And
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+also in this case, I'm going to use a slightly more complex
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+diagram than usual. But I don't want you to look
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+at all the individual details. Instead, I would like to focus
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+on a few main aspects. So, if you look at
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+this diagram, there are three things that you should clearly see.
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+First, you should see how the system involves four
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+nodes, a web server, an application server, a DB
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+server, and a mainframe. Second, you should see which
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+components are deployed on which nodes. For example, the student
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+component is deployed on the application server. And finally,
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+you should see how the nodes communicate with one
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+another. For example, you can see that the application
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+server and the university database communicate using a JDBC protocol.