July 2008
Intermediate to advanced
544 pages
16h 52m
English
Content preview from Computers as Components, 2nd Edition
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A.2 Diagram Types 471
A.2.1 Class Diagram
The class diagram defines classes and descr ibes the relationships between them.
One type of relationship between classes is subtype/supertype, which is shown
in Figure A.4; note that the derivation arrows go from derived to base. In the
upper part of the figure, Class 2 is derived from Class 1. In the lower part of the
figure, Class b is derived from both Class a1 and Class a2, an example of multiple
inheritance.
Many relationships other than inheritance can be represented in UML. A class
diagram with associations and their multiplicities is shown in Figure A.5. This dia-
gram shows how many objects of one class ...
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