Conceptual XML Schema Evolution — The CoDEX Approach for Design and Redesign

Meike Klettke

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Abstract:

Most available approaches for XML schema evolution specify the evolution steps for an XML schema or a DTD. This article will show that schema evolution can also be realized on a conceptual model. Schema evolution always requires propagating the changes to the XML documents that are already associated to the schema. This article suggests a method for conceptual schema evolution concerning all these subtasks. It is implemented in a tool called CoDEX (Conceptual Design and Evolution of XML schemas).

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