Study on the early-warning of manufacturing SMEs' supply chain risk based on B2B

In order to effectively and rationally apply the early-warning of manufacturing SMEs' supply chain based on B2B, an early-warning index for manufacturing SMEs' supply chain risk which included 9 level-one indexes and 30 level-two indexes was built, an evaluating model for supply chain risk which used analytic hierarchy process and fuzzy comprehensive evaluation was constructed, and an early-warning management system for supply chain risk based on BP neural network was designed.