SYSTEMS DEVELOPMENT ANALYSIS
SYSTEMS DEVELOPMENT METHODS AND TOOLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Design diagram
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Systems diagram
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Data flow diagram
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None of the above
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Detailed explanation-1: -A data flow diagram (DFD) maps out the flow of information for any process or system. It uses defined symbols like rectangles, circles and arrows, plus short text labels, to show data inputs, outputs, storage points and the routes between each destination.
Detailed explanation-2: -Data Flow Diagram (DFD) is a graphical representation of data flow in any system.
Detailed explanation-3: -A data flow diagram (DFD) is a graphical or visual representation using a standardized set of symbols and notations to describe a business’s operations through data movement. They are often elements of a formal methodology such as Structured Systems Analysis and Design Method (SSADM).
Detailed explanation-4: -Yourdon and Coad type data flow diagrams are usually used for system analysis and design, while Gane and Sarson type DFDs are more common for visualizing information systems. Visually, the biggest difference between the two ways of drawing data flow diagrams is how processes look.