Write a description of your company or organization. This overview will be included with all job descriptions, to give a sense of your workplace. Thus, it can be written ahead of time so that it can be inserted into the template when you prepare it.
If your company or organization is divided into multiple sections, then a job description should mention which department or other unit that particular position reports to. When creating a job description template, it is important to leave a place for listing the department, usually near the beginning of the document.