The purpose of employee performance evaluation is to provide encouragement and feedback to each employee to perform assigned duties and responsibilities at the maximum level, to assess such performance, and to offer avenues for improvement or enhancement. In addition, the annual performance evaluation for regular staff provides the opportunity for review of the employee's job description. It keeps the lines of communication open and should create a climate of mutual understanding. Unless an employee is a casual worker or a student worker, continuing evaluation processes require that an evaluation be completed and filed each spring, normally prior to May 1 each year.