1. Scalar Chain:

a. Meaning of Scalar Chain: It refers to a formal line of authority which moves from highest to the lowest ranks in a straight line.

b. Fayol’s Opinion: This chain must be followed in a strict manner. It means each communication must move from top to bottom and vice versa in a straight line. The important condition here is that no step (post) should be overlooked during communication.

c. Utility: Due to more clear system of authority and communication, problems can be solved faster.

d. Gang Plank: It is the exception of the principle of scalar chain. This concept was developed to establish a direct contact with the employee of equal rank in case of emergency to avoid delay in communication.

2. Harmony, not discord: As per this principle, such as atmosphere should be created in the organisation that labour (the major factor of production) and management consider each other indispensable. Taylor has referred to such a situation as a ‘Mental Revolution’. Taylor firmly believed that the occurrence of a mental revolution would end all conflicts between the two parties and would be beneficial to both of them.