Heterogeneous database integration of EPR system based on OGSA-DAI

Authors:
Xuhong Liu;Yunmei Shi;Yabin Xu;Yingai Tian;Fuheng Liu
Affiliations:
Computer School, Beijing Information Science and Technology University, Beijing, China;Computer School, Beijing Information Science and Technology University, Beijing, China;Computer School, Beijing Information Science and Technology University, Beijing, China;Computer School, Beijing Information Science and Technology University, Beijing, China;College of Information Science and Engineering, Qingdao Agricultural University, Qingdao, China
Venue:
HPCA'09 Proceedings of the Second international conference on High Performance Computing and Applications
Year:
2009

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Abstract

In this paper, we describe a service-oriented middleware architecture based on OGSA-DAI which integrates heterogeneous database distributed in different electronic patient record (EPR) system. OGSA-DAI provides uniform access to heterogeneous databases that have heterogeneous DBMSs by web service. We solve data heterogeneity on information expressed by specifying the criteria of information description and then mapping physical data to a virtual table. Users retrieve data from virtual table by SQL query.