15.3. What Is a Node?You've already seen that you can use nodes to show hardware in your deployment diagram, but nodes don't have to be hardware. Certain types of softwaresoftware that provides an environment within which other software components can be executedare nodes as well. A node is a hardware or software resource that can host software or related files. You can think of a software node as an application context; generally not part of the software you developed, but a third-party environment that provides services to your software. The following items are reasonably common examples of hardware nodes:
The following items are examples of execution environment nodes:
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