Which classic principle of management, formulated by Henri Fayol, establishes that authority must flow vertically in a clear, continuous line from top management to frontline workers?

Explanation

• The Scalar Chain represents the unbroken chain of command extending from the highest executive down to lowest rank-and-file employees.
• To avoid operational bottlenecks in urgent situations, Fayol devised the ‘Gang Plank’ mechanism allowing direct horizontal communication between peers.
• Remember: ‘Gang Plank’ is Fayol’s exception to the Scalar Chain principle for swift lateral communication.