Though less popular than it was a few years ago, the essay approach still has merit. It can be quite useful for a supervisor to periodically compose statements that describe an employee's performance during the appraisal period. The statements are usually written on standard forms, and they can be as general or as specific as you want. A supervisor may describe an employee's performance in terms of "his or her ability to relate to other work-team members." These written statements can either be forwarded to the HR department or can be used as one element in an appraisal session. Any written evaluation also needs to include more measurable evaluation tools, such as rating scales applied to specific objectives, tasks, and goals.