The job analysis should be accurate, concise, and complete. Job descriptions, and the process used to develop them, should conform to all legal requirements. One key law to keep in mind when preparing job descriptions is the ADA, which took effect for many employers in July 1992. Again, while this law does not specifically require the use of job descriptions, it has great ramifications for their use. Other laws that affect job descriptions are discussed in detail in the section on The Job Description in the Organization.
Job descriptions are important for a number of reasons.
Job descriptions clarify who is responsible for what within the company. They also help define relationships between individuals, between departments, etc. When used to advantage, they can settle grievances, minimize conflicts, and improve communications. Job descriptions help the jobholder understand the responsibilities of the position. Job descriptions are helpful to job applicants, employees, supervisors, and human resources professionals at every stage in the employment relationship, from recruitment to retirement.