XML

You can find some preliminary GPL'd DTDs at XML/DTD.

Useful grammars in building Consumerium:

• XML Based Signing http://www.w3.org/Signature/
• XML Based Encryption http://www.w3.org/Encryption/2001/
• XML Key Management http://www.w3.org/2001/XKMS/ (Working Group)
• XACML (eXtendable Access Control Mark-up Language) from http://www.oasis-open.org/
• GML (Geography Markup Language) from http://opengis.net/gml/01-029/GML2.html
• SVG (Scalable Vector Graphics)

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Grammars that should be made interoperable by XSLT transformations in CIUML

• Market Data Definition Language (MDDL) is used to describe financial market phenomena. It uses the following standards in it's markup ISO 639 - Language Codes (2 char), ISO 3166 - Country Codes, ISO 4217 - Currency Codes (3 char,) ISO 6166 - ISIN, ISO 10383 - MIC and ISO 10962 - CFI

• EAN.UCC Global Data Dictionary is an attemt to standardise XML business messages.

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XML data sources

• GEPIR @ http://www.gepir.org (Gateway to searching EAN, SSCC, GLN)

Otherwise Interesting

• RSS for your information overdosage needs.
• OPML for exchanging collections of RSS feeds

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External links:

• http://www.w3.org/