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Aspect-oriented design and implementation of adaptable access control for electronic medical records
Kung Chen1, Yuan-Chun Chang, Da-Wei Wang
1Department of Computer Science, National Chengchi University, Taipei, Taiwan. chenk@cs.nccu.edu.tw
International Journal of Medical Informatics
|February 2, 2010
Summary
This study introduces an aspect-oriented approach for adaptable, fine-grained access control in Electronic Medical Records (EMR). This method enhances patient privacy by modularizing access control logic without performance impact.
Area of Science:
- Computer Science
- Information Security
- Health Informatics
Background:
- Protecting patient privacy in Electronic Medical Records (EMR) requires robust access control mechanisms.
- Existing EMR systems often lack flexibility in managing fine-grained access permissions.
Purpose of the Study:
- To develop adaptable mechanisms and tools for fine-grained access control in EMR systems.
- To enhance patient privacy through improved access management.
Main Methods:
- An aspect-oriented design decouples access control logic from the core EMR application.
- Access control rules in XML format are used to automatically synthesize aspect modules.
- These modules are compiled and integrated into the EMR application for runtime enforcement.
Main Results:
- A structured rule format based on the Taiwan Electronic Medical Record Template was developed.
- Abstract aspects and templates were created for access control enforcement.
- A Web-based EMR prototype demonstrated the approach's feasibility, generating AspectJ code.
Conclusions:
- The approach accommodates diverse fine-grained access control needs modularly and adaptably.
- Aspect-oriented technology offers a promising solution for adaptable EMR access control.
- Dynamic adjustment of access control rules was integrated, with future work focusing on authoring and analysis tools.
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