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Integrating Hospital Information Systems in Healthcare Institutions: A Mediation Architecture

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Abstract

Many studies have examined the integration of information systems into healthcare institutions, leading to several standards in the healthcare domain (CORBAmed: Common Object Request Broker Architecture in Medicine; HL7: Health Level Seven International; DICOM: Digital Imaging and Communications in Medicine; and IHE: Integrating the Healthcare Enterprise). Due to the existence of a wide diversity of heterogeneous systems, three essential factors are necessary to fully integrate a system: data, functions and workflow. However, most of the previous studies have dealt with only one or two of these factors and this makes the system integration unsatisfactory. In this paper, we propose a flexible, scalable architecture for Hospital Information Systems (HIS). Our main purpose is to provide a practical solution to insure HIS interoperability so that healthcare institutions can communicate without being obliged to change their local information systems and without altering the tasks of the healthcare professionals. Our architecture is a mediation architecture with 3 levels: 1) a database level, 2) a middleware level and 3) a user interface level. The mediation is based on two central components: the Mediator and the Adapter. Using the XML format allows us to establish a structured, secured exchange of healthcare data. The notion of medical ontology is introduced to solve semantic conflicts and to unify the language used for the exchange. Our mediation architecture provides an effective, promising model that promotes the integration of hospital information systems that are autonomous, heterogeneous, semantically interoperable and platform-independent.

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Authors and Affiliations

  1. FSDM, Math & Informatics Department, University of Sidi Mohammed Ben Abdellah, BP 1796, Fez, Morocco

    Ikram El Azami & Mohammed Ouçamah Cherkaoui Malki

  2. TEMPO/PSI—Le Mont Houy, University of Valenciennes and Hainaut-Cambrésis, 59313, Valenciennes Cedex 9, France

    Ikram El Azami & Christian Tahon

Authors
  1. Ikram El Azami
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  2. Mohammed Ouçamah Cherkaoui Malki
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  3. Christian Tahon
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Corresponding author

Correspondence to Ikram El Azami.

Appendix

Appendix

Tables 1 and 2

Table 1 Mediator design pattern
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Table 2 Adapter design pattern
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El Azami, I., Cherkaoui Malki, M.O. & Tahon, C. Integrating Hospital Information Systems in Healthcare Institutions: A Mediation Architecture. J Med Syst 36, 3123–3134 (2012). https://doi.org/10.1007/s10916-011-9797-8

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  • DOI: https://doi.org/10.1007/s10916-011-9797-8

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