According to Torrington, a job description is usually developed by conducting a job analysis, which includes examining the tasks and sequences of tasks necessary to perform the job. The analysis considers the areas of knowledge and skills needed for the job. A job usually includes several roles. According to Hall, the job description might be broadened to form a person specification or may be known as "terms of reference". The person/job specification can be presented as a stand-alone document, but in practice it is usually included within the job description. A job description is often used by employers in the recruitment process.
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.