The document discusses the evolution of management theory from the classical approach to modern operational management theory. It describes Frederick Taylor's scientific management approach which emphasized efficiency, planning, measurement, and cooperation between management and workers. It also discusses Henri Fayol's general administrative theory which identified the five primary functions of management and proposed 14 principles of management. Many of Taylor's techniques for improving efficiency and Fayol's management principles are still used by managers today in analyzing work tasks, using time-and-motion studies, hiring qualified workers, and designing incentive systems.