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ER Model and Business Rules

ER Model and Business Rules
Action assertions have traditionally been implemented within an application program.

True
False

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

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

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ER Model and Business Rules
Packaged data models are meant to be exactly right straight out of the box.

True
False

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ER Model and Business Rules
A supertype is an entity type that shares common attributes or relationships distinct from other subgroupings.

True
False

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ER Model and Business Rules
An ERD that has had the entities clustered will display more entities.

False
True

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ER Model and Business Rules
Total specialization is represented by double lines between the supertype and subtype on an EER.

True
False

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