Exam 7: Structuring System Requirements: Conceptual Data Modeling

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The number of instances of entity B that can (or must) be associated with each instance of entity A refers to:

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Asking system users and managers "Who is responsible for establishing legitimate values for these data?" helps determine:

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Contrast data modeling to process modeling and logic modeling.

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The most conservative solutions in terms of the effort, cost, and technology involved in developing a new system are the:

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

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The identification of a system's mandatory features would be performed during systems planning and selection.

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Essential features are those that everyone agrees are necessary to solve the problem or meet the opportunity.

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An identifier is a candidate key that has been selected as the unique, identifying characteristic for an entity type.

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Match each of the following alternatives with its corresponding description.(Answers may occur more than once.) -Functionality, not cost, is the primary focus of these alternatives.

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The primary deliverable from the conceptual data-modeling step within the analysis phase is:

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Which of the following is a true statement?

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In theory, if there are four sets of requirements, three implementation environments, and four sources of application software, then there would be thirty-six possible design strategies.

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Enumerating different potential implementation environments that could be used to deliver the different sets of capabilities occurs during the:

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Gathering the information you need for data modeling by reviewing specific business documents handled within the system describes the:

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Match each of the following terms with its corresponding definition. -An entity type that associates the instances of one or more entity types and contains attributes that are peculiar to the relationship between those entity instances

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A person, place, object, event, or concept in the user environment about which the organization wishes to maintain data refers to a(n):

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In order to determine the integrity rules, minimum and maximum cardinality, and time dimensions of data, an analyst might ask, "Are values for data characteristics limited in any way?"

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Asking system users and business managers "Is each activity or event always handled the same way or are there special circumstances?" helps determine:

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A repeating group is a set of two or more multivalued attributes that are logically related.

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A ternary relationship occurs when a simultaneous relationship exists among instances of:

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