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The Unified Modeling Language User Guide, 2nd Edition
book

The Unified Modeling Language User Guide, 2nd Edition

by Grady Booch, James Rumbaugh, Ivar Jacobson
May 2005
Intermediate to advanced content levelIntermediate to advanced
496 pages
12h 59m
English
Addison-Wesley Professional
Content preview from The Unified Modeling Language User Guide, 2nd Edition

Chapter 13

Instances

See Chapter 15 for a discussion of internal structure, which is preferable when dealing with prototypical objects and roles.

The terms “instance” and “object” are largely synonymous, so, for the most part, they may be used interchangeably. An instance is a concrete manifestation of an abstraction to which a set of operations may be applied and which may have a state that stores the effects of the operation.

You use instances to model concrete things that live in the real world. Almost every building block in the UML participates in this class/object dichotomy. For example, you can ...

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Publisher Resources

ISBN: 0321267974Publisher Support