A data flow diagram (DFD) is a graphical or visual representation that uses a standardized set of symbols and notations to describe a business's operations through data movement. They're often elements of a formal methodology, such as Structured Systems Analysis and Design Method (SSADM). Superf...
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Creately Create interesting charts and diagrams quickly and collaboratively. This site has an extensive library of object sets and ready-made templates to make things easy. It also offers both free and paid (but very affordable) versions to cover your needs. [SOURCE] Easel.ly Here is an amazin...