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EnglishIn this paper we propose an approach for deriving a global representation of data sources having different formats and structures. The proposed approach is based on the exploitation of a particular conceptual model for both uniformly representing such data sources and reconstructing both their intra-source and their inter-source semantics. Along with the global representation, our approach returns two support structures which improve the access transparency to stored information, namely, a set of mappings, encoding the transformations carried out during the construction of the global representation, and a set of views, allowing to obtain instances of the concepts of the global representation from instances of the concepts of the input data sources. The paper also describes a prototype which implements the proposed approach.
| Titolo: | An Approach for Deriving a Global Representation of Data Sources Having Different Formats and Structures | |
| Autori: | ||
| Data di pubblicazione: | 2004 | |
| Rivista: | ||
| Handle: | http://hdl.handle.net/20.500.12318/268 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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