Exam 7: Using Data Flow Diagrams

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While the first ________ diagram helps the systems analyst grasp basic data movement, its general nature limits its usefulness.

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A rectangle with rounded corners is used to show the occurrence of a transforming process.

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Which of these are reasons for partitioning a system?

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A CRUD matrix shows where records are added, changed, used, and deleted from a file.

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List three of the five advantages of a logical data flow diagram.

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With a top-down approach, the diagrams move from specific to general.

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Partitioning on a data flow diagram for an ecommerce Web site may be used to show:

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A physical data flow diagram shows how the system will be implemented.

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Data flow diagrams must be drawn working from left to right on the page.

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Which of the following is not an advantage of using a logical model?

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A CRUD matrix is a tool used to represent where master files are read, updated, created, and deleted within the system.

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Ajax is used to:

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A clear name on a data flow diagram makes it easier to understand what the process is accomplishing.

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A CRUD matrix is used to show:

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The data flow diagram may be used to analyze the proposed system.

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The process of creating a simple data flow diagram fragment for each unique system trigger is called:

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In a CRUD matrix, each row represents the data stores used for each:

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What should be created each time data must be obtained from an external partner?

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Effective labels on data flow diagrams is a top priority.

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The biggest advantage of the data flow approach lies in the conceptual freedom found in the use of the four symbols.

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