Data Flow Diagrams (DFD) of Survey Builder (Part 2)

First question that arise in our mind that what is Data Flow Diagrams (DFD). so in simple words DFD is Captures the flow of data in a system.  It helps in developing an understanding of system’s functionality. What are the different sources of data, what different transformations take place on data and what are final outputs generated…

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Detailed Data Flow diagrams or level 1 DFD (Part 3)

Once context of a system has been captured using context level diagram, the analyst would expand his activities and start digging out system’s internal details. Therefore, the same context level diagram is further expanded to include all major processes of the system that make up system functionality. So, instead of portraying system as a black…

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