Exam 8: Structuring System Data Requirements

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A __________ is an association between the instances of one or more entity types that is of interest to the organization.

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The primary deliverable from the conceptual modeling step within the analysis phase is a(n):

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Business rules are specifications that preserve the integrity of the physical data model.

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Which of the following is a true statement?

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During requirements structuring:

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A candidate key that has been selected as the unique,identifying characteristic for an entity type is called a(n):

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Match each of the following terms with its corresponding definition. -Specifies that an entity instance can simultaneously be a member of two (or more)subtypes.

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Match each of the following terms with its corresponding definition. -On E-R diagrams,relationships are labeled with verb phrases.

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The characteristics of data captured during data modeling are crucial in the design of databases,programs,computer screens,and printed reports.

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What is the role of CASE in conceptual modeling? What information is placed in the CASE repository during conceptual modeling?

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A relationship that the data modeler chooses to model as an entity type best defines:

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Define the following key data modeling terms: entity,attribute,relationship,degree,cardinality,and associative entity.

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A subgrouping of the entities in an entity type that is meaningful to the organization and that shares common attributes or relationships distinct from other subgroupings best defines:

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Triggering operations are other business rules that protect the validity of attribute values.

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Match each of the following terms with its corresponding definition. -Specifications that preserve the integrity of a conceptual or logical data model.

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A plural relationship is a relationship that the data modeler chooses to model as entity type.

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A __________ is a relationship between the instances of one entity type.

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A collection of entities that share common properties or characteristics defines:

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Match each of the following terms with its corresponding definition. -A many-to-many (or one-to-one)relationship that the data modeler chooses to model as an entity type with several associated one-to-many relationships with other entity types.

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Book,supplier,and state are entity types.

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