Cardinality
An atttribute's cardinality is the number of values that it should possess.
Consider the example of a Person concept with attributes for Given Name, Surname, and Nickname. If a Person should have at least one Given Name, at most one Surname and zero or any number of Nicknames, then the cardinality for the attribute Given Name would be min = 1:
Surname should be set as exact = 1:
And Nickname should be min = 0:
