If you've been applying the UML techniques shown in earlier chapters of this book, then you've seen all but one view of your system. That missing piece is the physical view. The physical view is concerned with the physical elements of your system, such as executable software files and the hardware they run on. UML deployment diagrams show the physical view of your system, bringing your software into the real world by showing how software gets assigned to hardware and how the pieces communicate (see Figure 15-1). Figure 15-1. Deployment diagrams focus on the Physical View of your system
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