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http://www.edrawsoft.com/images/examples/data-flow-diagrams.png
http://www.conceptdraw.com/products/img/ScreenShots/cd5/uml/DataFlowSample.jpg
http://upload.wikimedia.org/wikipedia/commons/0/0f/Data_Flow_Diagram_Example.jpg
Wiki User
∙ 14y ago
Wiki User
∙ 8y agothe data flow diagram is the one which is going to explain how the data flows between the components of the system ...by which we can understand what is the input to the component and its respective output.....and this helps the developers to know what kind of data type is to be used during implementation
Wiki User
∙ 8y ago- a data flow diagram shows how the data flows through a program or system, it does not assume step by step operation and in fact is an excellent tool to aid in the design of highly parallel programming involving several tasks
- a flowchart shows the steps of control flow as a program executes step by step, it can only be used to design programs that run sequentially in a single task
Wiki User
∙ 11y agoNowhere.
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What is physical dfd?
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What is the utility of data flow diagram?
A data flow diagram (DFD) is used to show how the data flows through a program. It is used during the design phase to figure out how to get data from its source through all the processing and to its final destination or disposal. It is used later for reference like other design documents are used. An early equivalent of the data flow diagram was used on Unit Record Punchcard electromechanical data processing machines to show the flow of the decks of cards from machine to machine. The operators referenced these diagrams to make sure they knew where to take each deck of cards next. A similar diagram called a workflow diagram was developed in the 1920s to show the flow of work through a business or factory.
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Data Flow Diagram or DFD is made to give an idea as to how a particular process will flow.
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