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Explore > Themes > Metadata Schemas > Literature > Beyond the SGML DTD

Beyond the SGML DTD



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This short article outlines the confusion caused by the dual role of SGML and XML DTDs: grammars for the purpose of lexical parsing and schemas for the purpose of semantic validation.

This is an email posting originally sent to the W3C XML Working Group and which was subsequently expanded to several XML Conference papers (XML 97 and XML Europe 98). An unofficial version of the latter is available at <a href="http://www.ecs.soton.ac.uk/~lac/XMLEurope98/DTDsToSchemas.html">http://www.ecs.soton.ac.uk/~lac/XMLEurope98/DTDsToSchemas.html</a>.
 
  Developed by the IAM Research Group, University Of Southampton, UK
and funded by the Defence Evaluation and Research Agency (DERA), UK