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Visual Modeling with Rational Rose 2002 and UML by Terry Quatrani

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Multiplicity Indicators

Although multiplicity is specified for classes, it defines the number of objects that participate in a relationship. Multiplicity defines the number of objects that are linked to one another. There are two multiplicity indicators for each association or aggregation—one at each end of the line. Some common multiplicity indicators are

1 Exactly one
0..* Zero or more
1..* One or more
0..1 Zero or one
5..8 Specific range (5, 6, 7, or 8)
4..7,9 Combination (4, 5, 6, 7, or 9)

CREATING MULTIPLICITY IN RATIONAL ROSE

1.
Double-click on the relationship line to make the Specification visible.
2.
Select the Detail tab for the role ...

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