360-degree appraisal involves evaluating an employee's performance from multiple perspectives, including the employee's supervisor, peers, subordinates, and customers. It was first developed and used formally by General Electric in 1992. In India, companies like Reliance and Infosys have effectively used 360-degree appraisals. Potential appraisal evaluates an employee's future potential based on their present performance, personality traits, past experience, qualifications, and unused skills. The post-appraisal interview provides feedback to employees and allows them to discuss their evaluation with their supervisor to clarify expectations, receive guidance for improvement, and plan development opportunities.