Dynamic Messages Creation Method for HL7 based Healthcare Information System

This paper describes the method to create the HL7 message dynamically and make the HL7 middleware framework more efficient. The HL7 middleware framework was developed for exchanging the healthcare information in the National Taiwan University Hospital (NTUH). The framework is a Service-Oriented Architecture (SOA) and it contains the HL7Central Web Service. The Web Service makes the HL7 middleware framework more flexible and independent of programming language.