A job description is determined to specify how a particular employee will play a part within the organization. As a result it will need to describe:
1) the title of the job;
2) to whom the worker will be responsible;
3) for whom the worker is responsible;
4) a simple explanation of the function and duties of the worker within the company.
A job description is sometimes used as a job indicator for candidates for a job. On the other hand, it could be used as a instruction for a worker and his or her line manger as to his or her role and liability within the company.