An XML schema for managing fuzzy documents

Topics related to fuzzy data have been investigated in the classical database research field, and in the last years they are becoming interesting also in the XML data context. In this work, we consider issues related to the representation and management of fuzzy data by using XML documents. We propose to represent different aspects of fuzzy information by starting from proposals coming from the classical database context. We extend and integrate their datatype classifications in order to propose a complete and general approach for representing fuzzy information in XML documents by using XML Schema. In particular, we describe a fuzzy XML Schema Definition taking into account fuzzy datatypes and elements needed to fully represent fuzzy information