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Which of the following graphical notations is used to describe the data flow between various processes of a system?
  • a)
    Data flow diagram
  • b)
    Entity relation diagram
  • c)
    Data analysis diagram
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which of the following graphical notations is used to describe the da...
A DFD (Data Flow Diagram) is a graphical representation of the data in motion within a system (e.g. a business, an organization, an application) that is subject to analysis. On the highest (least detailed) level, it identifies all flows from a system - external sources and to a system - external destinations. With further decomposition of the system, the lower level diagrams show how data elements (that compose a data flow) are processed and passed on to subsequent processes or a store.
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Which of the following graphical notations is used to describe the data flow between various processes of a system?a)Data flow diagramb)Entity relation diagramc)Data analysis diagramd)None of theseCorrect answer is option 'A'. Can you explain this answer?
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