A loosely coupled framework for terminology controlled distributed EHR search for patient cohort identification in clinical research.
Zhao L., Lim Choi Keung SN., Taweel A., Tyler E., Ogunsina I., Rossiter J., Delaney BC., Peterson KA., Hobbs FDR., Arvanitis TN.
Heterogeneous data models and coding schemes for electronic health records present challenges for automated search across distributed data sources. This paper describes a loosely coupled software framework based on the terminology controlled approach to enable the interoperation between the search interface and heterogeneous data sources. Software components interoperate via common terminology service and abstract criteria model so as to promote component reuse and incremental system evolution.