It begins with the input of data or materials into the ... who hopes to reduce the time involved in creating a print ad might be able to use a flow chart of the process to identify and eliminate ...

With a focus on how the business operates at a high level, logical data flow diagrams are a great starting point, providing the outline needed to create more detailed physical data flow diagrams.

Checking and rechecking are also necessary, as an incorrect diagram can create serious errors. Examples of errors include forgetting to include a data flow or pointing an arrow in the wrong direction.