Domain Modeling and Application Development of an Archetype- and XML-based EHRS. Practical Experiences and Lessons...

Area of Science:

• Medical Informatics
• Health Information Systems
• Clinical Data Management

Background:

• Patient data access across hospitals is hindered by diverse information systems and proprietary terminologies.
• Developing electronic health record systems (EHRSs) is resource-intensive and time-consuming.
• A standardized development strategy for EHRSs is crucial for efficient healthcare data management.

Purpose of the Study:

• To demonstrate the feasibility of a standardized EHRS development strategy.
• To apply a reuse-oriented process model for EHRS creation.
• To develop an EHRS for the specific use case of sella region tumor treatment.

Main Methods:

• Collected requirements through neurosurgeon interviews and patient data analysis.
• Utilized openEHR as the data modeling standard and its associated software tools.
• Adapted a reuse-oriented process model from the business domain for EHRS development.

Main Results:

• Developed an EHRS using openEHR and W3C standards with 18 aggregated archetypes.
• Employed XML techniques for robust EHR and EHRS development.
• Created a graphical user interface (GUI) that integrates and visualizes diverse patient data.

Conclusions:

• Standardized EHR and EHRS development using openEHR and W3C standards is achievable.
• High semantic interoperability is enabled through standardized data representation.
• Visualized, standardized data can effectively support clinical decision-making processes.