Market Data Definition Language (MDDL)
The XML specification to enable the interchange of information necessary to account, to analyze, and to trade financial instruments of the world's markets.
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MDDL Specification


Current Production Version: 2.3-final as of 2004/08/31

Current Version in "Production Readiness": 2.4-draft as of 2005/11/20

Current Version in "Active Development": 2.5-beta as of 2007/02/28


All Versions:

Version 2.5-beta
  • Created 16 June 2005. Updated 28 February 2007.
  • Content: Expanded domains to cover all intended content, development of debtDomain, corporate actions, entity.
Version 2.4-draft
  • Created 16 June 2005. Updated 05 June 2006.
  • Content: Continued development of debtDomain.
Version 2.4-beta
  • Created 01 April 2004, Finalized 15 June 2005.
  • Content: Continued development of debtDomain.
Version 2.3-final
  • Finalized 31 August 2004.
Version 2.3-draft
  • Updated 18 August 2004.
Version 2.3-beta
  • Released 17 November 2003 - Updated 05 December 2003.
  • Refinement of debt setup data.
  • Expanded basic pricing support.
Version 2.2-final
  • Updated 01 April 2004.
Version 2.2-beta
  • Released 31 July 2003 - Updated 04 December 2003.
  • Restructured some debt elements.
  • Added basic pricing for all domains.
  • Includes query support items.
Version 2.1-beta
  • Released 15 May 2003.
  • Deemed the "setup" release containing primary reference data for the major asset classes.
  • Incorporates "entityDomain" and the foundation for Corporate Actions.
Version 2.0-draft
  • Originally released 31 March 2003.
  • Clarifies "debtDomain" setup information, adds setup information for new classes.
  • Updates glossary, schemes, and documentation.
Version 2.0-beta
  • Originally released 15 July 2002.
  • Adds "debtDomain" setup information.
  • Documentation and glossary not finished.
Version 1.0-final
  • Released at the fifth WFIC on 02 November 2001.
  • Includes edits from review of sample instance documents.
  • Includes all available documentation.
Version 1.0-draft
  • Released 24 October 2001.
  • Finished planned "1.0" modifications to specification.
  • Includes sample instance documents and edits.
Version 1.0-beta
  • Released 03 October 2001.
  • Initial release for public review.
  • Used to generate initial sample documents.