Utilizacao de Chaves em Algoritmos de Diff para XML

Rodrigo C. SantosCarmem Hara

Change detection algorithms for XML documents proposed in the lit erature have focused on the structural analysis of the document. When XML is used for data exchange, a matching process based on keys defined on the document can generate more meaningful results. In this paper, we use XML keys to determine which elements in different versions refer to the same entity in the real world, and therefore should be matched by the algorithm. We present an algorithm that extends the structural analysis with a semantical analysis based on keys. An experimental study has been conducted to determine the impact of this approach on the execution time of the algorithm.

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