Here are a few off the top of my head!

AECMA 1000D
   SGML DTD
   XML DTD
   W3 Schema

UBL
   W3 Schema

DITA
  XML DTD

MathML
  XML DTD

IMS Question and Test
  W3 Schema

OAGI
  XML DTD

<quote who="Costello, Roger L.">
>
> Hi Folks,
>
> I am putting together a list of XML vocabularies that are expressed
> using either DTD, Relax NG, or XML Schema.  Below is the list I have
> thus far.  Can you add to the list please?
>
> DTD
>    XHTML
>    Docbook
>
> Relax NG
>    SVG
>    XML Dig-Sig
>    Atom
>
> XML Schema
>    GML
>    XSLT
>
> Thanks!
>
> /Roger
>
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Betty Harvey                         | Phone: 410-787-9200 FAX: 9830
Electronic Commerce Connection, Inc. |
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