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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.


Journal article


Stud Health Technol Inform

Publication Date





519 - 523


Cohort Studies, Database Management Systems, Electronic Health Records, Health Records, Personal, Internationality, Internet, Natural Language Processing, Patient Identification Systems, Search Engine, Software, User-Computer Interface