Prepare job summaries, if relevant. You can use the job description template you use for each position that you advertise by filling in the template with the information that is relevant to that position. However, if you do (or expect to do) a lot of hiring of a particular position, you might make a special template that includes a summary of that job. This will save you some time.
You may find it useful to leave a section on your template to be used for detailing the supervision of a particular position, and/or the extent to which it is supervised. This can help an individual understand who he or she would report to while performing a particular position, and the role of the position within the hierarchy of a company or organization.