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  1. The UDEF

    The UDEF   The UDEF is being superseded by the Open Data Element Framework … communication, but will not be backwards-compatible with UDEF. These pages are maintained to provide access to legacy …

  2. Dublin 2019: Proceedings - Open Platform 3.0 Forum

    … the complete story of O-DEF, acknowledging the history of UDEF. The website provides access to all documents and …