Fayol believed in constant communication between supervisors and employees. Fayol defines the Scalar Chain as 'the chain of superiors ranging from the ultimate authority to the lowest rank.' An employee should feel free to contact his supervisor about anything through the scalar chain. Every order, message, request, instruction or explanation has to pass through the Scalar Chain. This path shows a company's line of authority and the links through which communications are transmitted from the top to the bottom of a company and back.