A job description is a written document that summarizes each job in an organization, describes the duties of the job, lists the knowledge, skills and abilities required to do the job, and describes the working conditions and physical demands of the job.
Are they necessary? Absolutely. As with any policy, rule or procedure in an organization, job descriptions should also be written and distributed to the incumbents. This gives each employee a better understanding of what their duties are. It also helps individuals who may be seeking to advance within an organization to know what is required of that job so that they prepare themselves with the knowledge, skills and abilities to be considered for the position of interest.
They also provide the tool used when recruiting for a position. In most cases the job description is what is used when posting a job advertisement and for interviewing.
An important part of every job description should also have a statement that states “May be required to perform other duties as assigned.
If you have more questions, I suggest consulting with an experienced HR professional.
