Exam 7: Using Data Flow Diagrams

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

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Balanced decomposition is when the data flow in or out of a child diagram does not match the data flow in or out of a parent process.

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False

Which of the following is a goal of dividing a Web site into a series of Web pages?

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

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By using combinations of only four symbols, the systems analyst is able to create a pictorial depiction of data flows that eventually can provide solid system ________.

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Processes that transform data should be named with a noun which indicates the data that has been transformed.

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What are the four advantages of using a data flow approach over narrative explanations of data movement?

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Base elements are elements that are created by a process using a formula or some logic.

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The systems analyst needs to conceptualize data flows from a top-down perspective.

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A basic process is one that does not explode to a child diagram.

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The data flow approach enables the systems analyst to better understand the interrelatedness of ________ and ________.

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Which is not one of the four basic symbols used to chart data movement on data flow diagrams?

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What is the difference between a logical and physical data flow diagram?

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Unbalanced decomposition means that the data flow to or from a parent process does not match the data flow in or out of a child diagram.

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A method that provides conceptional freedom for representing processes and flows in a business system is the ________.

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

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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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When the data flow in and out of a parent process do not match the data flow in or out of a child diagram, it is called:

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

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More detail is achievable through using a process called "exploding the diagrams."

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