This document discusses performance appraisal, which is defined as the systematic evaluation of an employee's job performance and potential. It describes several traditional methods for conducting performance appraisals, such as ranking, paired comparisons, and graphic rating scales. It also discusses some modern methods like assessment centers, which use simulations to evaluate employees, and behaviorally anchored rating scales, which link critical job behaviors to performance ratings. The document provides an overview of the objectives, process, and essential elements of an effective performance appraisal system.