ER MODEL AND BUSINESS RULES QUIZ

Rectangle

Circle

Oval

Diamond

Defining one or more subtypes of the supertype and forming supertype/subtype relationships.

Defining one or more supertypes of the subtype and forming supertype/subtype relationships.

Defining one or more subtypes of the supertype and not forming supertype/subtype relationships.

Defining one or more supertypes of the subtype and not forming supertype/subtype relationships.

Disjoint with partial specialization

Overlap with total specialization

Disjoint with total specialization

Overlap with partial specialization

True

False

True

False

True

False

False

True

Subtypes at the higher lever in the hierarchy inherit attributes only from their immediate subtype.

Attributes are assigned at the lowest logical level.

Attributes are assigned at the highest logical level.

Subtypes at the lower lever in the hierarchy inherit attributes only from their immediate supertype.

An attribute of the subtype whose values determine the subtype

An attribute of the supertype whose values determine the supertype

An attribute of the supertype whose values determine the subtype

An attribute of the subtype whose values determine the supertype

It should be complex.

All of these

It should not be convertible to computer code.

It may include restrictions.