Ulrich Hannes, Kock-Schoppenhauer Ann-Kristin, Drenkhahn Cora, Löbe Matthias, Ingenerf Josef
IT Center for Clinical Research (ITCR-L), University of Lübeck, Germany.
Institute for Medical Informatics, Statistics and Epidemiology (IMISE), University of Leipzig, Germany.
Stud Health Technol Inform. 2020 Nov 23;275:202-206. doi: 10.3233/SHTI200723.
Metadata is often used for different tasks in the field of medical informatics: semantic description of data, quality validation, data integration, or information retrieval. Metadata definitions are captured and curated in time-consuming tasks and stored in metadata repositories that manage and preserve the metadata. Due to technical and legal restrictions, metadata is rarely as easily accessible and interoperable as it is necessary for modern information systems. In a previous study, a uniform interface based on the widely used ISO/IEC 11179 and the Facebook data retrieval language GraphQL was introduced as a solution to these technical obstacles. In the meantime, the ISO standard 21526 has been published, a recent version designed with a strong focus on health informatics. While it is conceptually oriented on the metamodel in ISO 11179, a number of extensions but also restructurings have been introduced. In this study, the authors investigated the difference between ISO 11179 and ISO 21526 and extended the unified metadata query interface to be future-proof and in particular, to support the semantic extensions of ISO 21526.
数据的语义描述、质量验证、数据集成或信息检索。元数据定义是在耗时的任务中捕获和整理的，并存储在管理和保存元数据的元数据存储库中。由于技术和法律限制，元数据很少像现代信息系统所必需的那样易于访问和互操作。在之前的一项研究中，引入了一个基于广泛使用的ISO/IEC 11179和Facebook数据检索语言GraphQL的统一接口，作为解决这些技术障碍的方案。与此同时，ISO标准21526已经发布，这是一个最近设计的、高度关注健康信息学的版本。虽然它在概念上以ISO 11179中的元模型为导向，但已经引入了一些扩展以及结构调整。在本研究中，作者调查了ISO 11179和ISO 21526之间的差异，并扩展了统一的元数据查询接口，以确保其未来适用性，特别是支持ISO 21526的语义扩展。
