I believe that if we view the TDWG architecture as being more than the GBIF indexing use case, we need to think closer about the assumptions made in the requirement of a fully forward compatible data structure.

Please see:

http://wiki.tdwg.org/twiki/bin/view/TAG/ForwardCompatibilityAndScientificDat... hange

Gregor---------------------------------------------------------- Gregor Hagedorn (G.Hagedorn@bba.de) Institute for Plant Virology, Microbiology, and Biosafety Federal Research Center for Agriculture and Forestry (BBA) Königin-Luise-Str. 19 Tel: +49-30-8304-2220 14195 Berlin, Germany Fax: +49-30-8304-2203