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The purpose of a data flow diagram is to show you how the data flows through an information system. A sequence diagram shows you information regarding how the processes work together and in what order they operate.
Information obtained from experiments. (information collected from an experiment)
Original information from grouped data can be obtained
its called data
data.
Data obtained from an experiment is the results you got from whatever test or experiment you did. Data obtained for a research paper is the information you got from your research. Basically, it is the data/info/results/etc you need to come to a certain conclusion.
A good example of the use of a data flow diagram may be found in large corporations such as large websites or other Information Technology or Data Information Processing companies.
Hotel Booking SystemLevel One Data Flow DiagramLevel Two Data Flow Diagram
Data is raw facts which are unprocessed or meaningless quantity which is not useful.After making it useful or meaningful it becomes information
DATA flow diagram
The diagram of a steering column for a Buick Skylark can be easily obtained from the manufacturer. General Motors is responsible for this information.
DFD for online shopping refers to a data flow diagram. Such a diagram offers information pertaining to the activity between customers, sellers and visitors to an online store.