EXAMIANS
When an entity instance must be a member of only one subtype, it is which of the following?
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There is cardinality on an EER between the supertype and subtype.
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A supertype is an entity type that shares common attributes or relationships distinct from other subgroupings.
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An entity instance of a subtype represents the same entity instance of a supertype.
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Which of the following statements concerning business rules is true?
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An ERD that has had the entities clustered will display more entities.
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Packaged data models are meant to be exactly right straight out of the box.
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Generalization is the process of defining more general entity types from a set of more specialized entity types.
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An oval represents which of the following in an EER?
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Action assertions have traditionally been implemented within an application program.
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