May 2002
Intermediate to advanced
416 pages
8h 37m
English
Content preview from Executable UML: A Foundation for Model-Driven Architecture
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16.1. Dividing Large Domains
Many domains can be quite large, with dozens or even hundreds of classes. Subsystems provide a way to partition a large domain so that people and groups can work with manageable chunks of the problem.
Definition: A subsystem is a part of a domain containing classes, relationships, state machines, and their procedures.
Figure 16.1 shows how the online bookstore domain can be divided into three subsystems: Product Specification, Ordering, and Shipping. Each subsystem contains a cluster of closely related classes.
Figure 16.1. Subsystems and Classes
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