Konrad, you thought we might want to do this back when we had only three people involved. Maybe we can call it "LocusML" or "Bio-Object ML" (BOML) or "Bio-Macromolecule ML" (BMML). Fine with me, and I'd certainly use it for other applications as well. On the other hand, it is possible to design DTDs by extending existing ones. Perhaps this is a good idea to save effort and keep compatibility to some extent. Konrad -- ------------------------------------------------------------------------------- Konrad Hinsen | E-Mail: hinsen at cnrs-orleans.fr Centre de Biophysique Moleculaire (CNRS) | Tel.: +33-2.38.25.55.69 Rue Charles Sadron | Fax: +33-2.38.63.15.17 45071 Orleans Cedex 2 | Deutsch/Esperanto/English/ France | Nederlands/Francais -------------------------------------------------------------------------------