Data Flow Diagrams provide a clear understanding of the flow of data through the systems, processes, and users within your organization.

Many businesses use data flows and there are reasons why these need to be carefully constructed, as we outline here.

I showed how to customize use-case diagrams with interfaces, data flows, and pre- and postconditions, and how to map the data flow types to data descriptions, data sources, and stored procedures that ...

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The flow chart shown overleaf illustrates the use of the Database Interface routines. Routine DIERR is not included in the diagram. It may generally be used out of sequence within the guidelines ...