A semi-automatic technique for constructing a global representation of information sources having different formats andstructure

Abstract

In this paper we propose a semi-automatic technique for constructing a global representation of information sources having different formats and structures. The proposed technique exploits a conceptual model, called SDR-Network, for both uniformly representing and deriving the semantics of involved information sources. The global representation is enriched with two support structures which improve access transparency to stored information, namely a global semantic catalogue (or Metascheme) and a Set of Mappings, encoding the transformations carried out during the construction of the global representation.