Explain The Difference Between The Disjoint And Overlap Rule?

1.	Explain The Difference Between The Disjoint And Overlap Rule?
Answer» The disjoint rule states an ENTITY instance of a SUPERTYPE can only be a MEMBER of one SUBTYPE. The overlap rule states an entity instance of a supertype can be a member of multiple subtypes. The disjoint rule states an entity instance of a supertype can only be a member of one subtype. The overlap rule states an entity instance of a supertype can be a member of multiple subtypes.

Answer»

The disjoint rule states an ENTITY instance of a SUPERTYPE can only be a MEMBER of one SUBTYPE.
The overlap rule states an entity instance of a supertype can be a member of multiple subtypes.

The disjoint rule states an entity instance of a supertype can only be a member of one subtype.
The overlap rule states an entity instance of a supertype can be a member of multiple subtypes.

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Explain The Difference Between The Disjoint And Overlap Rule?

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