Exam 7: Using Data Flow Diagrams

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What does the text within the process symbol indicate?

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C

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

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

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A method that provides conceptual freedom for representing processes and flows in a business system is the:

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Transaction files:

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

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

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A logical data flow diagram focuses on how the business operates.

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

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

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

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

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Each external entity is labeled with a noun.

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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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Data stores must always have data flow into them in a proper diagram.

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A transaction file links two processes that execute at different times.

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Transaction files are used to link all logical data flow diagram processes.

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