The process of developing job descriptions often sheds light on the nature of a job as well as suggests that there are alternative methods of performing essential job tasks. Job analysis may help encourage management and staff to work together in identifying and streamlining the essential and marginal job functions.
When detailing qualifications on job descriptions, employers typically require certain knowledge, skills, aptitude, training, and previous experience. Employers should remember that these qualifications might be gained in a number of ways. For example, knowledge may be gained through education, training, or experience. In addition, other requirements, such as the possession of a driver’s license could be considered discriminatory. For example, it may be necessary to specify that an individual must be "available to attend evening meetings throughout the community" and "possess a driver’s license” but an employer should distinguish between need and convenience and consider any discriminatory effects. An employee with a disability may be able to attend a meeting via teleconference or access public transportation to attend the meeting on site.