Date Added: Mar 2012
XML is gradually accepted as a standard for representing, accessing, and exchanging data in internet applications. It poses many new challenges to XML storage or XML repositories. The data centric approach of XML has necessitated the definition of integrity constraints for XML. Integrity constraints have proved fundamentally important in Relational Database management. The authors introduce Fuzzy Logic based constraints using triangular membership function and Trapezium shape membership functions. In this paper, they have introduced a fuzzy constraint-based framework to model the schema matching problem. Their approach is able to handle uncertainty in schema matching and data inconsistency in Native XML Database systems by exploiting fuzzy constraints.