EXAMIANS
Packaged data models are meant to be exactly right straight out of the box.
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Which of the following is not one of the three ways to classify an action assertion?
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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 cluster is a set of one or more entity types and associated relationships.
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A rectangle represents which of the following in an EER?
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A subtype discriminator of the supertype is an attribute whose values determine the target subtype(s).
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An ERD that has had the entities clustered will display more entities.
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When an entity instance must be a member of only one subtype, it is which of the following?
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An action assertion must include which of the following?
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When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?
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