A data integration system provides the user with a unified view, called global schema, of the data residing at different sources. Users issue their queries against the global schema, and the system computes answers to queries by suitably accessing the sources, through the mapping, i.e., the specific
A framework for defining semantic metrics
β Scribed by Larry J. Morell; Jeffrey M. Voas
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 777 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0164-1212
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