TrustEd: A Dual-Database Trusted Broker for Multi-agency Data

A longitudinal database system is outlined, which allows for the joining of data between disparate systems and government agencies. The goal of the system is to allow for the sharing of data between agencies while maintaining strict compliance of rules and regulations protecting individual privacy and confidentiality. The ability to link records over time is central to such a system, so a knowledgebase approach to entity resolution is described along with how this system that integrates longitudinal data from multiple sources can still protect individual privacy and confidentiality. Central to this protection is that personally identifiable information should not be proliferated on multiple systems. The system, Trusted, is a hybrid model which provides the simplicity of a centralized model with the privacy protection of a federated model.