Institute of Medical Informatics, University of Münster , Germany.
Appl Clin Inform. 2012 Jul 11;3(3):276-89. doi: 10.4338/ACI-2012-03-RA-0011. Print 2012.
Semantic interoperability between routine healthcare and clinical research is an unsolved issue, as information systems in the healthcare domain still use proprietary and site-specific data models. However, information exchange and data harmonization are essential for physicians and scientists if they want to collect and analyze data from different hospitals in order to build up registries and perform multicenter clinical trials. Consequently, there is a need for a standardized metadata exchange based on common data models. Currently this is mainly done by informatics experts instead of medical experts.
We propose to enable physicians to exchange, rate, comment and discuss their own medical data models in a collaborative web-based repository of medical forms in a standardized format.
Based on a comprehensive requirement analysis, a web-based portal for medical data models was specified. In this context, a data model is the technical specification (attributes, data types, value lists) of a medical form without any layout information. The CDISC Operational Data Model (ODM) was chosen as the appropriate format for the standardized representation of data models. The system was implemented with Ruby on Rails and applies web 2.0 technologies to provide a community based solution. Forms from different source systems - both routine care and clinical research - were converted into ODM format and uploaded into the portal.
A portal for medical data models based on ODM-files was implemented (http://www.medical-data-models.org). Physicians are able to upload, comment, rate and download medical data models. More than 250 forms with approximately 8000 items are provided in different views (overview and detailed presentation) and in multiple languages. For instance, the portal contains forms from clinical and research information systems.
The portal provides a system-independent repository for multilingual data models in ODM format which can be used by physicians. It serves as a platform for discussion and enables the exchange of multilingual medical data models in a standardized way.
常规医疗保健和临床研究之间的语义互操作性是一个未解决的问题，因为医疗保健领域的信息系统仍在使用专有的和特定于站点的数据模型。然而，如果医生和科学家希望从不同的医院收集和分析数据，以建立登记处并进行多中心临床试验，那么信息交换和数据协调是必不可少的。因此，需要基于通用数据模型进行标准化元数据交换。目前，这主要是由信息学专家而不是医学专家来完成的。
我们建议医生能够在一个基于网络的、以标准化格式存储医疗表单的协作式知识库中，交换、评估、评论和讨论他们自己的医疗数据模型。
基于全面的需求分析，我们指定了一个用于医疗数据模型的基于网络的门户。在这种情况下，数据模型是医疗表单的技术规范（属性、数据类型、值列表），而没有任何布局信息。CDISC 操作数据模型 (ODM) 被选为标准化表示数据模型的适当格式。该系统是使用 Ruby on Rails 实现的，并应用了 Web 2.0 技术来提供基于社区的解决方案。来自不同来源系统（常规护理和临床研究）的表单被转换为 ODM 格式并上传到门户中。
实现了一个基于 ODM 文件的医疗数据模型门户（http://www.medical-data-models.org）。医生可以上传、评论、评估和下载医疗数据模型。该门户提供了多种语言的 250 多个表单，其中包含大约 8000 个项目，以不同的视图（概述和详细呈现）呈现。例如，门户中包含来自临床和研究信息系统的表单。
该门户提供了一个系统独立的 ODM 格式的多语言数据模型存储库，医生可以使用该存储库。它是一个讨论平台，能够以标准化的方式促进多语言医疗数据模型的交换。
