Metadata-based integration scheme for heterogeneous datasets
Qixin Liu · Journal of Tsinghua University(Science and Technology) · 2009
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 transparent access to all the original data resources. The scheme has been implemented in a medical data sharing project with excellent results.