A Generic Framework for Extracting XML Data from Legacy Databases

Philippe Thiran, Fabrice Estievenart, Jean-Luc Hainaut, Geert-Jan Houben

Research output: Contribution to journalArticle


This paper describes a generic framework in which semantics-based XML data can be derived from legacy databases. It consists of first recovering the conceptual schema of the database through reverse engineering techniques, and then of converting this schema, or part of it, into XML-compliant data structures. Both steps heavily rely on generic schema transformation techniques, while all the schemas involved in the whole process are expressed in a unique model, named GER. Transformations between schemas are expressed as sequences of reversible transformation primitives. The reversed sequence can be used to automatically translate query, data or updates posed on XML.
Original languageEnglish
Pages (from-to)205-223
Number of pages19
JournalJournal of Web Engineering
Issue number3
Publication statusUnpublished - 2005


  • Legacy Database
  • Data Reverse Engineering
  • Schema Transformation
  • XML


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