Extendable product traceability system from small start

A cost-effective and easy way to introduce a product traceability system is to start from a small system and gradually extend it to large-scale systems. Traceability systems used in existing field tests are unsuitable for large-scale deployment because they use a single, centralized database. This paper describes a extendable traceability system proposed by Toshiba that employs distributed databases and ID-hash values. We have evaluated the proper operation of this system with a trial system and plan to analyze its qualitative behavior through large-scale experiments.