Question

If we use the labels "Parent" and "Child" to represent, respectively, the one and many side of a 1:N relationship, we can then consider whether the parent and child must participate in the relationship. If one must participate, it is mandatory (M). If one does not have to participate it is optional (O). The four possible sets of minimum cardinalities are therefore:

Parent optional and Child optional (O-O)
Parent mandatory and Child optional (M-O)
Parent optional and Child mandatory (O-M)
Parent mandatory and Child mandatory (M-M)

Answer 1

The subject of this question is Mathematics and the grade level is High School. The question explores the labels "Parent" and "Child" to represent a 1:N relationship and discusses the four possible sets of minimum cardinalities in this relationship.

Step-by-step explanation:

The subject of this question is Mathematics and the grade level is High School. The question is discussing the labels "Parent" and "Child" to represent a 1:N relationship.

It then explores the four possible sets of minimum cardinalities in this relationship, which are Parent optional and Child optional (O-O), Parent mandatory and Child optional (M-O), Parent optional and Child mandatory (O-M), and Parent mandatory and Child mandatory (M-M).