Dear IETFers, This is a question that I hope some of you can help me with. The IETF uses the terms MUST/SHOULD/MAY very consistently, according to http://www.ietf.org/rfc/rfc2026.txt. I seem to remember that there is also some terminology for implementations, in particular some terms for 1) implementations that do all the MUSTs, but not necessarily more 2) implementations that do all the MUSTs and all the SHOULDs Can somebody point me to this terminology? Thanks in advance, Martin. #-#-# Martin J. Du"rst, I18N Activity Lead, World Wide Web Consortium #-#-# mailto:duerst@w3.org http://www.w3.org/People/D%C3%BCrst