A Loosely Coupled Framework for Terminology Controlled Distributed EHR Search for Patient Cohort Identification in Clinical

摘要

Heterogeneous data models and coding schemes for electronic healthrecords present challenges for automated search across distributed data sources.This paper describes a loosely coupled software framework based on theterminology controlled approach to enable the interoperation between the searchinterface and heterogeneous data sources. Software components interoperate viacommon terminology service and abstract criteria model so as to promotecomponent reuse and incremental system evolution