XML Constraint-tree-based Functional Dependencies

Authors:
Teng Lv;Ping Yan
Affiliations:
Xinjiang University, Urumqi, 830046, China;Xinjiang University, Urumqi, 830046, China
Venue:
ICEBE '06 Proceedings of the IEEE International Conference on e-Business Engineering
Year:
2006

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Abstract

A concept of functional dependency in XML documents based on constraint-tree is proposed. The definition proposed in our paper overcomes the shortcomings of previous definitions in the following aspects: (1) it captures the tree-structured characteristics of XML documents in structure. (2) it considers a more general situation of XML functional dependencies based on sub-trees with some constraint conditions in XML documents. The relationship between our definition of XML functional dependencies and other related definitions is also discussed in the paper.