基于元数据的异构数据集整合方案

为了把分布在不同系统中的异构数据集整合起来,实现高度集成的数据查询功能,需要一种普适性方案对数据进行规范化与再利用。该文对典型的应用系统分布场景进行建模,制定一种伸缩性良好的元数据规范,进而提出一种可对分散系统中的异构数据集进行集成,对集中的元数据信息进行统一管理,并为用户提供单一入口查询的整合方案。对原始系统的改造极小,且用户可以透明地访问原始系统的所有数据资源。方案已经应用在医药卫生科学数据共享工程中,取得了可观的经济效益。

Metadata-based integration scheme for heterogeneous datasets

A pervasive scheme which normalizes and reuses datasets is needed to consolidate the utilities of heterogeneous datasets in distinct systems to achieve highly integrated information retrieval.A flexible metadata standard was developed for a typical system distribution scenario with an integration scheme which standardizes the original datasets,establishes a gateway for all the metadata,and provides query services through a single entry point.Extra work in the original systems is minimized and users get tran...