Performance appraisal is the process of evaluating an employee's job performance and productivity. It involves assessing an employee's current and potential job skills, abilities, and achievements. Some key methods of performance appraisal discussed in the document include graphic rating scales, forced distribution, paired comparison, critical incident reports, essay evaluations, and management by objectives. The goals of performance appraisal include administrative decisions such as determining salary increases, promotions, and terminations as well as providing feedback to help employees improve and develop their skills.