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Framework and prototype for a secure XML-based electronic health records system.

Robert Steele1, William Gardner, Darius Chandra

  • 1Faculty of Information Technology, University of Technology, Sydney, Broadway, NSW 2007, Australia. rsteele@it.uts.edu.au

International Journal of Electronic Healthcare
|December 1, 2007
PubMed
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Protecting personal medical information in Electronic Health Records (EHRs) is crucial. This study introduces a flexible XML-based access control model for secure EHR data management and retrieval.

Area of Science:

  • Computer Science
  • Information Security
  • Health Informatics

Background:

  • The security of personal medical information presents a significant obstacle to the widespread adoption and advancement of Electronic Health Records (EHRs).
  • eXtensible Markup Language (XML) is emerging as a critical standard for representing and transporting data, particularly within the healthcare sector.
  • The increasing prevalence of XML in e-health necessitates robust and adaptable access control mechanisms for sensitive medical data stored in XML format.

Purpose of the Study:

  • To propose a novel declarative access control model specifically designed for XML data repositories.
  • To enhance the security and flexibility of managing access to personal medical information within EHR systems.
  • To address the challenges of securing XML data in the context of electronic health initiatives.

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Main Methods:

  • Development of an expressive XML role-based control model.
  • Implementation of operational semantics to define and enforce access policies.
  • Utilization of Xplorer, a user interface generation engine, to demonstrate the model's practical application.

Main Results:

  • The proposed model provides a declarative approach to access control for XML data.
  • The Xplorer engine effectively supports search, browse, and navigate functionalities on XML repositories with controlled access.
  • Demonstrated the feasibility of implementing flexible and expressive access control for sensitive health information.

Conclusions:

  • The presented XML-based access control model offers a viable solution for enhancing the security of personal medical information in EHRs.
  • The model's declarative nature and role control mechanisms provide flexibility in managing data access.
  • The Xplorer system serves as a practical illustration of the model's effectiveness in real-world applications.