EMERGING TRENDS IN SOFTWARE ENGINEERING
MISCELLANEOUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -A DFD is always accompanied by a data dictionary. Explanation: A data dictionary lists all data items appearing in a DFD including definition and data names.
Detailed explanation-2: -Answer: Which of the following is not a component in DFD? Explanation: Attributes is not a component in DFD.
Detailed explanation-3: -The Data Store symbol represents data that is not moving (delayed data at rest). The Process symbol represents an activity that transforms or manipulates the data (combines, reorders, converts, etc.). Any system can be represented at any level of detail by these four symbols.
Detailed explanation-4: -Data Flow Diagrams (DFD) or Bubble Chart Its graphical nature makes it a good communication tool between user and analyst or analyst and system designer. It gives an overview of what data a system processes, what transformations are performed, what data are stored, what results are produced and where they flow.