ER MODEL AND BUSINESS RULES QUIZ

False

True

False

True

False

True

Attributes are assigned at the highest logical level.

Attributes are assigned at the lowest logical level.

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

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

False

True

True

False

Disjoint with partial specialization

Overlap with total specialization

Overlap with partial specialization

Disjoint with total specialization

True

False

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 subtypes of the supertype and forming supertype/subtype relationships.

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

All of these

Concise

A singular noun

Specific to the organization