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ER Model and Business Rules

ER Model and Business Rules
Which of the following is not one of the three ways to classify an action assertion?

Enabler
Integrity Control
Authorization
Condition

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ER Model and Business Rules
Generalization is the process of defining more general entity types from a set of more specialized entity types.

True
False

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ER Model and Business Rules
An action assertion is a statement that expresses some aspect of the static structure of the organization.

True
False

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ER Model and Business Rules
An entity cluster is a set of one or more entity types and associated relationships.

False
True

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

False
True

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ER Model and Business Rules
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?

Overlap with partial specialization
Disjoint with partial specialization
Overlap with total specialization
Disjoint with total specialization

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