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Using Federated Catalogs to Improve Semantic Integration among Spatial Data Infrastructures.
- Source :
-
Transactions in GIS . Oct2011, Vol. 15 Issue 5, p707-722. 16p. - Publication Year :
- 2011
-
Abstract
- Nowadays, Spatial Data Infrastructures (SDIs) play an important role in government agencies, at different levels: global, national, and local. They aim to improve the management and sharing of geospatial data. Nonetheless, these SDIs have been developed as information islands, in which a user's query is compared to metadata described only in their own catalog services. The lack of interaction among SDIs limits the potential of these infrastructures in providing geospatial data to a larger audience. This article presents a distributed architecture, based on a federation of SDIs which interact among themselves, using query propagation. This propagation facilitates data discovery and sharing. We also describe a distributed query processing service used to enable the resource discovery in distributed infrastructures. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13611682
- Volume :
- 15
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Transactions in GIS
- Publication Type :
- Academic Journal
- Accession number :
- 66396510
- Full Text :
- https://doi.org/10.1111/j.1467-9671.2011.01286.x