This document summarizes several classical management theories:
1. Henri Fayol emphasized organizational structure with principles like division of labor and unity of command. F.W. Taylor's scientific management broke tasks into timed components to increase efficiency but ignored human factors.
2. Douglas McGregor's Theory X viewed humans as lazy, while Theory Y found fulfillment through responsibility and creativity.
3. Edward Deming emphasized continuous improvement, training, effective communication, and removing barriers to quality work.
4. While no single theory guarantees success, combining old and new approaches can be more effective than relying on one.