Risk Evaluation Model of a Supply Chain System Based on Unascertained Theory

Supply chain systems have complex and open characteristics. The system risk is always subject to the comprehensive effect of external factors and internal factors, which determine the great uncertain characteristics of supply chain systems risk. Based on this, this paper constructed index sets for supply chain risk assessment from the system perspective. With the combination of expert evaluation and unascertained information processing theory, a supply chain system risk unascertained-evaluation model was built. An application to validate the risk evaluation model was designed. Results show that the evaluation model designed in this paper has a good prediction effect for the supply chain system risk evaluation and has high operability and usability.