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In order to reduce the effort in the integration andactualization of heterogeneous healthcare legacy systems that should share acommon database, we propose the creation of an interoperabilitybus using the HL7 standard—the HL7Middleware. This interoperability bus is anintermediate layer responsible for the communication between a database, healthinformation systems and medical equipment, called HL7Server. Connected systemsuse the HL7 messaging semantics to store and retrieve data from the database.We validate our approach with respect to two different criteria: performance andintegration costs. Benchmark tests were executed with and without the use of HL7Middlewareand with different network bandwidths. These results demonstrated that theperformance of the interoperability bus is higher when compared to traditionaldatabase access for larger volumes of data and when the bandwidth of the useris considerably lower than the bandwidth of theconnection between HL7Server and database. The overall development and deployment cost was considered low and the reusability degree ofwrapper code was considered high, thus suggesting a progressive reduction ofthe integration costs of additional services and subsystems of an organization.

 

KEYWORDS

Middleware; Healthcare; Interoperability Bus; Legacy System; HL7; Telemedicine

Cite this paper

R. Andrade, A. Wangenheim, A. Savaris and K. Petry -Using a Health Level 7 Interoperability Bus to Support Legacy Systems in the Health Domain,- E-Health Telecommunication Systems and Networks, Vol. 2 No. 4, 2013, pp. 72-80. doi: 10.4236-etsn.2013.24010.





Autor: Rafael Andrade, Aldo von Wangenheim, Alexandre Savaris, Karine Petry

Fuente: http://www.scirp.org/



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