The chain of command, sometimes called the scaler chain, is the formal line of authority, communication, and responsibility within an organization. The chain of command is usually depicted on an organizational chart, which identifies the superior and subordinate relationships in the organizational structure. According to classical organization theory the organizational chart allows one to visualize the lines of authority and communication within an organizational structure and ensures clear assignment of duties and responsibilities. By utilizing the chain of command, and its visible authority relationships, the principle of unity of command is maintained. Unity of command means that each subordinate reports to one and only one superior.

Historical Background

The chain of command principle is ancient, but its application to the management of organizations was only systematized in the twentieth century. Two individuals—the French engineer and executive Henri Fayol and the German...