Technol Health Care. 2022;30(3):551-564. doi: 10.3233/THC-212806.
Current Electronic Health Record (EHR) systems are built using different data representation and information models, which makes difficult achieving information exchange.
Our aim was to propose a scalable architecture that allows the integration of information from different EHR systems.
A cloud-based EHR interoperable architecture is proposed through the standardization and integration of patient electronic health records. The data is stored in a cloud repository with high availability features. Stakeholders can retrieve the patient EHR by requesting only to the integrated data repository. The OpenEHR two-level approach is applied according to the HL7-FHIR standards. We validated our architecture by comparing it with 5 different works (CHISTAR, ARIEN, DIRAYA, LLPHR and INEHRIS) using a set of selected axes and a scoring method.
The problem was reduced to a single point of communication between each EHR system and the integrated data repository. By combining cloud computing paradigm with selected health informatics standards, we obtained a generic and scalable architecture that complies 100% with interoperability requisites according to the evaluation framework applied.
The architecture allowed the integration of several EHR systems, adapting them with the use of standards and ensuring the availability thanks to cloud computing features.
当前的电子健康记录 (EHR) 系统使用不同的数据表示和信息模型构建，这使得信息交换变得困难。
我们的目标是提出一种可扩展的架构，允许整合来自不同 EHR 系统的信息。
通过对患者电子健康记录进行标准化和整合，提出了一种基于云的 EHR 互操作架构。数据存储在具有高可用性功能的云存储库中。利益相关者可以通过仅请求集成的数据存储库来检索患者的 EHR。根据 HL7-FHIR 标准应用了 OpenEHR 两级方法。我们通过使用一组选定的轴和评分方法将我们的架构与 5 个不同的工作（CHISTAR、ARIEN、DIRAYA、LLPHR 和 INEHRIS）进行比较来验证我们的架构。
问题减少到每个 EHR 系统与集成的数据存储库之间的单点通信。通过将云计算范例与选定的健康信息学标准相结合，我们获得了一种通用且可扩展的架构，根据应用的评估框架，完全符合互操作性要求。
该架构允许整合多个 EHR 系统，通过使用标准来适应它们，并通过云计算功能确保可用性。
