A job description may include relationships with other people in the organization: Supervisory level, managerial requirements, and relationships with other colleagues. A job description need not be limited to explaining the current situation, or work that is currently expected; it may also set out goals for what might be achieved in the future, such as possible promotion routes and conditions.
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.