Exam 7: Using Data Flow Diagrams

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With a ________ approach, the diagrams move from general to specific.

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When a process has all input or all output data flow, it means that an arrowhead is pointing in the wrong direction or there is a missing data flow.

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The data store symbol is simply showing a depository for data which allows addition or ________ of data.

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In logical data flow diagrams, the type of physical storage is unspecified.

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Which graphically characterize(s) data processes and flows through a business system?

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Partitioning data flow diagrams is the process of deciding which processes are manual procedures and which processes should be grouped into which computer programs.

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________ depict the broadest possible overview of system inputs, processes, and outputs.

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An external entity is called a source or ________ of data, and is considered to be external to the study.

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

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Which of the following is not an error when drawing a data flow diagram?

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Which of the following is not a reason for partitioning processes into separate programs?

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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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What are the four basic symbols used in data flow diagrams.

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Ajax is used to:

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

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

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Data flows occurring simultaneously can be depicted doing just that through the use of ________ arrows.

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Which of these are reasons for partitioning a system?

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Having separate Web forms means that the forms will become more complex.

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

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