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.
Internal consistency is very important when developing an overall bank of organizational job descriptions. The employer may want to select specific formats, fonts, logos, and other elements to streamline and standardize the appearance of the documents. Consistent language such as preferred action words and frequently used terms can help create cohesiveness throughout. Internal consistency may also help “ensure equitable comparisons of content across jobs” in justifying employee salary decisions (Milkovich and Newman, 1990).