![]() ![]() Regardless of their purpose, all diagram software offers some standard features to their users. Input/ output from external to internal source and vice versa High level to gain an overview of the system Lower level to view the system in detail for design and analysis ![]() Represents connected processes and their data flowĭata flow, System flow, Document flow, Program flowĭescribes process sequence, sometimes timingĭoes not describe the order or simultaneous occurrence of processes In contrast, a data flow diagram is a graph showing the flow of data during a process, from input to output. It depicts the flow of control in a program and can even act as a program planner for problem-solving.
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