Cardinality structure

The Cardinality data structure defines the cardinality between objects.

Definition


<simpleType name="Cardinality">
<restriction base="string">
<enumeration value="NONE" />
<enumeration value="ONE_ONE" />
<enumeration value="MANY_ONE" />
<enumeration value="ONE_MANY" />
<enumeration value="MANY_MANY" />
</restriction>
</simpleType>
  • NONE--No relationship to other classes.
  • ONE_ONE--One instance of a class is associated with a single instance of another class
  • MANY_ONE--One or more instances of a class are associated with one instance of another class
  • ONE_MANY--One instance of a class is associated with one or more instances of another class.
  • MANY_MANY--Many instances of a class are associated with many instances of another class.

 

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