This document discusses performance appraisals, including their purpose, process, and challenges. Performance appraisals are a collaborative process between employees and supervisors to plan performance, set goals, provide feedback, and discuss career development. They help facilitate communication, determine salary and promotions, and address performance issues. The performance review should occur at least annually and involve documenting performance against set standards, measuring actual performance, and making decisions. However, effective performance appraisals face challenges such as determining evaluation criteria, creating an objective rating system, rater competence, errors, and employee resistance.