A job description is a useful, plain-language tool that describes the tasks, duties, functions and responsibilities of a position. It outlines the details of who performs a specific type of work, how that work is to be completed, and the frequency and the purpose of the work as it relates to the organization’s mission and goals. Job descriptions are used for a variety of reasons, such as a tool for recruiting, determining salary levels, conducting performance reviews, clarifying missions, establishing titles and pay grades, and creating reasonable accommodation controls.