ER Model and Business Rules
Which of the following statements concerning business rules is true?

It may include restrictions.
It should not be convertible to computer code.
It should be complex.
All of these

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ER Model and Business Rules
Specialization is which of the following processes?

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

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