Abstract
Problem statement: Most of healthcare data exchanges are textual, poorly structured and often not accessible by clinical professionals. Otherwise, the variety of medical applications and medical standards makes difficult sharing and communicating healthcare data in a highly heterogeneous environment. Approach: XML and related standards (XML schema, XSL) provided an infrastructure that might change the situation. Our aim in this study was to define an exchange model providing a common structure of shared healthcare data to allow a better, easier and structured communication within and between hospital information systems. Results: We realized an XML-based model that we detailed the content and the structure. Thus, seen the confidential character of healthcare data, we described an approach to secure the data transfer. We were situated regarding existing models and standards such as HL7, DICOM and the PMSI and we took into account critics made for them. Conclusion/Recommendations: The model we proposed provide a practical solution allowing a secure and structured healthcare data exchange and will serve as a summary version of the common computerized patient record.
Highlights
The patient care process involves many actors, with very different statuses and contains numerous actions potentially realized on a larger area
Summary: The emergence of these standards and many others comes to fill a need for standardization of healthcare data representation and its sharing
When we have a multitude of views and approaches, we inherit the initial problem of heterogeneity
Summary
The patient care process involves many actors, with very different statuses and contains numerous actions potentially realized on a larger area. The needs for communication among health professionals who work cooperatively to support the patient, within the health establishment and between different health organizations, makes necessary the opening of hospital information systems and require the definition of an exchange model of healthcare data. The definition of a common structure of shared healthcare data is a concept that will allow easier opening of hospital information systems and provide an infrastructure for interoperability and standardization. A Hospital Information System can be defined as a system to facilitate the management of all medical and administrative data of a hospital and care quality. This system summarizes, among others, the essential data needed for a medico-economic evaluation
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