Human resource management involves key functions like staffing, training, performance appraisal, and compensation management. Staffing includes human resource planning, recruitment, selection, placement, and onboarding processes. Training and development aims to improve employee performance through learning opportunities. Performance is evaluated through performance appraisal. Compensation management determines pay and benefits to attract and retain talent. Employee welfare programs enhance quality of life. Together, these HR functions manage the employee lifecycle from hiring to retirement.