In specialization hierarchies with multiple levels of supertype/subtypes,a lower-level supertype inherits all of the attributes and relationships from all of its upper-level subtypes.

Question

Quizplus · Accepted Answer

In specialization hierarchies, a lower-level subtype inherits attributes and relationships from its immediate supertype, not from subtypes.

In Specialization Hierarchies with Multiple Levels of Supertype/subtypes,a Lower-Level Supertype