Extending product function with VBA : The System Architect object model : Object model classes : Symbol class : Symbol class: Attributes : FromCardinality
  
FromCardinality
For relationship lines in an Entity Relation diagram or constraints on a Physical Data Model, the cardinality at the from end can be determined and set using this property.
The constants that are set or returned are as follows:
Constant
Number
Meaning
CARDINALITYZERO
0
Zero
CARDINALITYONLYONE
1
Only One
CARDINALITYZEROONE
2
Zero or One
CARDINALITYONEMULT
3
One or Many
CARDINALITYZEROONEMULT
4
Zero, One or Multiple
CARDINALITYMULT
5
Many
CARDINALITYUNKNOWN
6
Not Marked
CARDINALITYNOTUSED
7
No Cardinality
See also
Symbol class: Attributes