Bell curve appraisal, also known as forced distribution, is a performance evaluation method that ranks employees into predefined categories based on their performance. Typically, it distributes employees into three groups: top performers, average performers, and low performers, following a bell-shaped curve. This method aims to identify high achievers for rewards and development while addressing underperformance. However, it can be controversial, as it may create competition and affect morale. Proper implementation and communication are essential for its effectiveness.