The purpose of a job description is to persuade, as well as to qualify and disqualify candidates before you spend time interviewing them. If you’re looking for someone with a degree in economics, then putting that on the job requirements list will disqualify the candidates without the necessary qualification. On the other hand, the right copy and tone can help you stand out to incredibly desirable candidates.
Job functions should be qualified whenever possible and the desired outcome of the work should be described, rather than the method for accomplishing that outcome. For example, instead of saying, “she files folders” write that “the clerk files folders alphabetically based on category." Employers should let individuals read their job descriptions, voice any concerns, and sign their descriptions. Job descriptions should be accurate. To ensure accuracy, combine the input of many managers and employees.