What is the advantage of a DFD over other diagrams?

How is a DFD more helpful from diagrams?
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"The data flow through the system and the specific data that is available to each process are clearly shown."
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"DFDs indicate the actual circulation of information over the process but perform simply no partially throughout defining the data, in addition to being a utilitarian area by which to entry DD Items. Moves along with merchants along DFDs ar primarily representations of information which is identified in other places. "
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