Think of this as describing the purpose of the position, and its role within your company or organization as a whole. A job summary will briefly acknowledge the fundamentals of the position, so leave space on your job description template to answer.
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.
Properly written job position descriptions are often the only document that totally define what a role is, what skills are required to perform it, and where the role fits in an organization. This makes it simple to identify candidates that are a good fit for the role and also to hold candidates accountable if they are not performing essential duties that are required in the role.
A job description typically consists of six major components: 1) essential job functions; 2) knowledge and critical skills; 3) physical demands; 4) environmental factors; 5) the roles of the ADA and other federal laws such as the Occupational Safety Health Act (OSH Act); and 6) any explanatory information that may be necessary to clarify job duties or responsibilities.