COMMUNICATION SYSTEMS QUIZ

True

False

False

True

Integrity Control

Enabler

Authorization

Condition

No attributes apply to any of the instances of an entity type.

An instance of a subtype participates in a relationship that is unique to that subtype.

Attributes apply to all of the instances of an entity type.

An instance of a subtype participates in a relationship that is the same as the other subtypes.

False

True

True

False

All of these

It should not be convertible to computer code.

It may include restrictions.

It should be complex.

False

True

True

False

An attribute of the supertype whose values determine the subtype

An attribute of the subtype whose values determine the subtype

An attribute of the subtype whose values determine the supertype

An attribute of the supertype whose values determine the supertype