The Scalar Principle, the scalar chain, the chain of the command or line of authority:Scalar chain is the chain of superiors. the line of command or the line of authority form the highest rank to the lowest rank in the organization established for the purpose of communication in both the directions, it establishes the channel through” which communications should pass, and also states the superior- subordinate relationships in the organization.
When the strict following of the line of authority becomes detrimental, and there is a need of swift action, the scalar chain can be short-circuited by taking the permission of their immediate superiors. Through this arrangement, the scalar chain principle is safeguarded, and at the same time, the subordinate officers are enabled to take swift action. Such an arrangement is known as Gang Plank. In this context, it must be noted that the short circuiting of the scalar chain is permitted only on routine matters. But matters pertaining to decision -making should be routed through the usual scalar chain.