ISO/TS 10303-1211:2005 specifies the application module for Cardinality of relationship.
The following are within the scope of ISO/TS 10303-1211:2005:
- the cardinalities for a mapping or relationship between classes.
If the mapping or relationship R is between class A and class B, then the module can specify:
- the possible numbers of members of B that different members of A have a relationship R with;
- the possible numbers of members of A that different members of B have a relationship R with.