Credit Risk Evaluation Web Services for Efficient Development of Credit Risk Management Systems

摘要

A credit risk evaluation model that calculates default probability of corporations from their financial reports is indispensable for credit risk management systems. This paper proposes a system architecture for credit risk management systems for non-financial corporations using Web service components including a credit risk evaluation model. We have developed a credit risk management pilot system using XBRL (eXtensible Business Reporting Language) and Web services based on the proposed architecture in cooperation with the Tokyo Institute of Technology and others. This pilot system demonstrates that it is easy to coordinate existing systems with Web service components.