Notice that the normal flow (blue arrows) consists of four discrete steps. Notice also the distance and thickness of the red flows which indicate additional steps caused by problems. Your Work Flow Diagram will begin as a scale diagram of the physical space you are studying. Then, depending on the nature of your operation, you will trace the route through which your work flows. If you manufacture a product, you will trace its route through the various machines and operators you employ. If yours is a service operation, you may trace the route the paperwork takes, or maybe you will trace how your employees move from one area to another. In either case, draw one line for each "pass", making sure that each line is visible. After you have "stacked-up" all of the movement in a given period, you may then draw up a representation of your roughed-out version with smoother lines, like the diagram you see above.
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