XML & Data integration
Alon Halevy,
University of Washington, USA
Abstract
The invention of XML injected additional fuel into the data integration fire.
XML enabled researchers and practitioners of data integration to focus on
issues of query processing and semantic heterogeneity, rather than low-level
details involving data sharing formats and building wrappers.
This tutorial will begin by reviewing several architectures for data sharing
and integration and the query processing issues that had to be solved in
building them. I will highlight the novel challenges faced because of the
need to process XML data in data integration systems. Then, I will discuss
recent work on bridging semantic heterogeneity between data sources, and
describe current challenges for the field.