The job description contains sufficient information to describe major responsibilities and essential functions as they exist today. They provide the information necessary to classify the position, not the person; thus they are “incumbent neutral” and not based on any specific quality of an incumbent (such as knowledge, skills, abilities, performance, dedication, loyalty, years of service, or degree). The document should not include every detail of how and what work is performed so that it remains useful even when minor changes occur. Job descriptions can be written as a joint effort between supervisor and employee, but the supervisor must approve.