This document summarizes an assignment on managing employee performance through effective appraisal systems. It discusses the definition of performance management and factors that affect performance. It then reviews the history of different performance appraisal tools used over time, including their strengths and weaknesses. These tools include merit-rating systems, management by objectives, and behaviorally anchored rating scales. Finally, it compares management by objectives, performance appraisal, and performance management and concludes that performance management aims to continuously improve business effectiveness and individual performance through frequent review.