Building an Integrated Electronic Health Record System using Semantic Web Services
Date Issued
2009
Date
2009
Author(s)
Huang, Cheng-Hei
Abstract
In recent years, Service-Oriented Architecture (SOA) has become a trend to build a large-scale system. In SOA, services can run on different platforms and be used through the Internet to increase reusability. Web Service is a mainstream technology to achieve SOA, but current UDDI method cannot efficiently help user find out proper services because it is based on keyword search and service classification. Semantic Web Service is a technology based on existing Web Service standard, which uses semantic to annotate services. According to services’ semantic, computer can search and composite services automatically.ealthcare Information System in National Taiwan University Hospital uses Health Level Seven standard for message exchange and Web Services as backbone for SOA systems integration. In the process of building an Electronic Health Record (EHR) system through Web Services, we found that the original system must be modified to meet new demands of changing existing services or adding new services, which increases maintenance cost and reduces flexibility. Therefore, we introduced ontology with Semantic Web Services to the system and implements Semantic Web Service registration, automatic searching, automatic composition, and automatic invocation. In this way, system can search for suitable services and discover new services automatically.n this thesis, we successfully incorporate Semantic Web technology with SOA system and completed a flexible EHR system. The system gets basic patient information and a list of desired patient record fields from healthcare workers, then, outputs a well-formatted EHR document after a chain of searching, compositing and invocating processes. This thesis will detail the workflow implementation of entire system and discuses the conclusions and future works of our design.
Subjects
Service-Oriented Architecture
Ontology
Semantic Web Services
Electronic Health Record
Clinical Document Architecture
Type
thesis
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