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QL4MDR: a GraphQL query language for ISO 11179-based metadata repositories

机译:QL4MDR:一种基于ISO 11179的元数据存储库的GraphQL查询语言

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摘要

BackgroundHeterogeneous healthcare instance data can hardly be integrated without harmonizing its schema-level metadata. Many medical research projects and organizations use metadata repositories to edit, store and reuse data elements. However, existing metadata repositories differ regarding software implementation and have shortcomings when it comes to exchanging metadata. This work aims to define a uniform interface with a technical interlingua between the different MDR implementations in order to enable and facilitate the exchange of metadata, to query over distributed systems and to promote cooperation. To design a unified interface for multiple existing MDRs, a standardized data model must be agreed on. The ISO 11179 is an international standard for the representation of metadata, and since most MDR systems claim to be at least partially compliant, it is suitable for defining an interface thereupon. Therefore, each repository must be able to define which parts can be served and the interface must be able to handle highly linked data. GraphQL is a data access layer and defines query techniques designed to navigate easily through complex data structures.
机译:背景技术如果不协调其架构级别的元数据,则很难集成异构医疗实例数据。许多医学研究项目和组织都使用元数据存储库来编辑,存储和重用数据元素。但是,现有的元数据存储库在软件实现方面有所不同,并且在交换元数据方面存在缺陷。这项工作旨在用不同的MDR实现之间的技术语言定义一个统一的接口,以实现和促进元数据的交换,在分布式系统上进行查询并促进合作。若要为多个现有MDR设计一个统一的接口,必须同意一个标准化的数据模型。 ISO 11179是用于元数据表示的国际标准,并且由于大多数MDR系统声称至少是部分兼容的,因此它适合在其上定义接口。因此,每个存储库必须能够定义可以提供哪些部件,并且接口必须能够处理高度链接的数据。 GraphQL是数据访问层,它定义了查询技术,旨在轻松浏览复杂的数据结构。

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