Based on Barnards classical organization theories this article presented new interpretion on the essence of supply chain and the position and role of information sharing in the supply chain, and then based on MSUs fundamental mode of supply-chain management to construct information-shared systemic frame of supply chain and indicated the positions and roles of different entities in information sharing on the mentioned research frame. This article also made research on information-shared entities in some aspects as the relation between information-shared entities and information-sharing, information sharing among entities, the information-shared motivation among entities and multi-entities information sharing and tried to enrich theoretical research of supply-chain information sharing.
β factor of fundamental mode of fiber laser beam
