Final answer:
Business process diagram preparation guidelines involve dividing the BPD into labeled columns, clearly labeling all symbols, using arrowheads on flow lines, and including the name, date, and preparer's name on each page. Annotations should describe process steps and graphical representations should have labeled axes and use different symbols for different data sets.
Step-by-step explanation:
The guidelines for preparing a business process diagram (BPD) include several key practices to ensure the clarity and usefulness of the diagram. First, divide the BPD into labeled columns which can help in delineating different roles or stages within the process. Each symbol should be clearly labeled to remove any ambiguities about what they represent. It is also important to use arrowheads on all flow lines to indicate the direction of the process flow.
Place the name, date, and preparer's name on each page of the BPD to provide a clear reference and maintain documentation integrity. Furthermore, it is helpful to annotate the BPD to describe each process step briefly. When representing data graphically, axes should be labeled clearly and different symbols should be used to represent different data sets or materials. Finally, illustrate all important details in a flowchart, like the volume of each buffer in a plasmid prep and indicate which fractions contain the plasmid DNA and which are discarded.