TY - JFULL AU - Messaouda Fareh and Omar Boussaid and Rachid Challal PY - 2012/3/ TI - Multi-level Metadata Integration System: XML, RDF and RuleML T2 - International Journal of Computer and Information Engineering SP - 248 EP - 254 VL - 6 SN - 1307-6892 UR - https://publications.waset.org/pdf/11227 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 62, 2012 N2 - Our work is part of the heterogeneous data integration, with the definition of a structural and semantic mediation model. Our aim is to propose architecture for the heterogeneous sources metadata mediation, represented by XML, RDF and RuleML models, providing to the user the metadata transparency. This, by including data structures, of natures fundamentally different, and allowing the decomposition of a query involving multiple sources, to queries specific to these sources, then recompose the result. ER -