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Data flow diagrams (DFDs) are graphical representations of how data moves and transforms in a system. They are useful for business systems analysis because they help you understand the processes ...
Abstract: ER diagrams have a proven track ... chain of data transformations computed in SQL, Python, or R languages, for instance. On the other hand, flow diagrams remain the main mechanism to ...
Abstract: ER diagrams have a proven track ... chain of data transformations computed in SQL, Python, or R languages, for instance. On the other hand, flow diagrams remain the main mechanism to ...
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