A job description or JD is a document that describes the general tasks, or other related duties, and responsibilities of a position. It may specify the functionary to whom the position reports, specifications such as the qualifications or skills needed by the person in the job, and a salary range. Job descriptions are usually narrative, but some may comprise a simple list of competencies; for instance, strategic human resource planning methodologies may be used to develop a competency architecture for an organization, from which job descriptions are built as a shortlist of competencies
The process of developing job descriptions often sheds light on the nature of a job as well as suggests that there are alternative methods of performing essential job tasks. Job analysis may help encourage management and staff to work together in identifying and streamlining the essential and marginal job functions.