EXup: an engine for the evolution of XML schemas and associated documents

Authors:
Federico Cavalieri
Affiliations:
University of Genova, Genova, Italy
Venue:
Proceedings of the 2010 EDBT/ICDT Workshops
Year:
2010

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Abstract

XML Schema is employed for describing the type and structure of information contained in XML documents. Schema evolution means that a schema is modified and the effects of the modification on instances are faced. XSUpdate is a language that allows to easily identify parts of an XML Schema, apply a modification primitive on them and define an adaptation for associated documents. Purpose of this paper is to present the engine we developed for the evaluation of XSUp-date statements against XML Schemas and associated documents. The presented engine relies on the translation of XSUpdate statements in XQuery Update expressions.