Whether to use job descriptions usually depends upon a number of factors, including employer preferences and resources. Employers should look at relevant rules and regulations, the size and type of organization and industry, hiring practices, and current employees.
There are several steps to completing a job description. These steps include completing a job analysis, recording the basic purpose and functions of the job, and detailing necessary qualifications.
According to Torrington, a job description is usually developed by conducting a job analysis, which includes examining the tasks and sequences of tasks necessary to perform the job. The analysis considers the areas of knowledge and skills needed for the job. A job usually includes several roles. According to Hall, the job description might be broadened to form a person specification or may be known as "terms of reference". The person/job specification can be presented as a stand-alone document, but in practice it is usually included within the job description. A job description is often used by employers in the recruitment process.
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.