Design and Implementation of HL7 V3 Gateway
摘要
Although the health data exchange standard of Health 7(HL7) V2.x (Version 2.0-2.5) has been widely used in hospital and has served well in these few years, the process that hospitals apply the standard of data transfer is very difficult. Because there is no explicit methodology in the HL7 V2.x development process, the gateway design is very complex. However, V3 strives to improve the V2 process and its outcomes. In this paper, the authors present an HL7 V3 gateway design based on the Web Services which can solve the problems of the HL7 V2.x. Web Services is an information exchange protocol regardless of the implementation platform, and is currently the main technology in enterprise application integration (EAI). We firstly introduce how to build HL7 V3 gateway with Web Services, then focus on the design of HL7 gateway, finally realize the parsing and transmission of HL7 V3 message. It is necessary to develop and adopt a standard to support meaningful information representation and exchange among disparate medical information systems. The Health Seven (HL7) Organization, established in 1987, is one of several ANSI-accredited standards developing organizations (SDOs) operating in the healthcare domain. HL7 provides a standard for the exchange, management and integration of data that support clinical patient care, management, delivery and evaluation of healthcare services. The term Level 7 refers to the highest level of the open system interconnection (OSI) model of the International Organization for Standardization (ISO). HL7 V2.5