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ISO/IEC 13250:2003

ISO/IEC 13250:2003

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Information technology — SGML applications — Topic maps

Published By Publication Date Number of Pages
ISO 2003-05 48
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ISO/IEC 13250:2003 (2nd edition) specifies two syntaxes for the interchange of Topic Maps. One of these syntaxes is based on the ISO/IEC 10744:1997 (HyTime) meta-DTD (meta Document Type Definition), and it is itself specified as a meta-DTD. The other, called XTM (XML Topic Maps), is specified as an eXtensible Markup Language (XML) DTD.

Both syntaxes allow the expression of:

  • associations between subjects of discourse and zero or more of their names, to be used in various contexts,
  • associations between subjects and occurrences (pieces of relevant addressable information),
  • user-defined associations among any arbitrary subjects of discourse,
  • user-defined subjects which are classes of subjects, including classes of associations and the distinct roles that are played in instances of associations, and
  • scopes, expressed as sets of subjects, within the context of which specific associations are meant to be understood as valid and/or relevant.

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ISO/IEC 13250:2003
$36.40