July 2001
Intermediate to advanced
656 pages
15h 51m
English
book
Applying UML and Patterns: An Introduction to Object-Oriented Analysis and Design and the Unified Process, Second Edition
by Craig Larman
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19.4. Domain Model vs. Design Model Classes
To reiterate, in the UP Domain Model, a Sale does not represent a software definition; rather, it is an abstraction of a real-world concept about which we are interested in making a statement. By contrast, DCDs express—for the software application—the definition of classes as software components. In these diagrams, a Sale represents a software class (see Figure 19.2).
Figure 19.2. Domain model vs. Design Model classes.
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