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Database - ER Model and Business Rules - Discussion

Discussion Forum : ER Model and Business Rules - General Questions (Q.No. 8)
ER Model and Business Rules
8.
Specialization is which of the following processes?
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.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.
Nancy said:   6 years ago
Hi.

I'm wondering about this Q in the specialization process we don't define any relationship so, why the correct answer is forming a relationship between super/sub type.
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