PROCESS FLOW DIAGRAM REQUIREMENTS

Beginning at the end--requirements gathering lessons from
Requirements need to be discovered before they can be "gathered" and this requires a robust approach to analyzing the business needs. This paper discusses a list-to-visual process approach has increased project success. The forward pass in the visual process flow establishes the basics--what steps are taken during an action.
Process flow diagram - Wikipedia
Process flow diagram. A process flow diagram ( PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment. The PFD displays the relationship between major equipment of a plant facility and does not show minor details such as piping details and designations.
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