Ed,  (01)
> We have made some effort at ontologies in this area, based in part on 
> the International Vocabulary for Measurement, a publication of the 
> Bureau Internationale des Poids et Mesures (BIPM):
> http://www.bipm.org/en/publications/guides/vim.html  (02) 
Thank you for the link. I understand more about "dimensional exponents" 
(page 6). That will be an important component of a tools that deal with 
this topic, but I don't think that should be exposed to a normal human :-).  (03)
> We had this same problem with SI quantity(type) "time". Technically, 
> these terms should have URIs beginning with urn:iso:std:... that are 
> identifiers for terms defined in ISO 31 and ISO 1000. But between the 
> W3C insistence on using http: to begin URIs and the ITU-T insistence on 
> using urn:oid:<magic numbers>, I don't know what became of the iso 
> prefix (I never saw the registration of the ISO URN on the IANA or IETF 
> site).  (04) 
If they consider the concept of a metre to be the intellectual property 
of the ITU-T and they are using "urn:" URIs because they *don't* want a 
web accessible, unencumbered definition, then I would warn them that 
where there is a need, somebody will fill it, and they will have simply 
cut themselves out of the semantic web.  (05)
I would be just as happy with a "http://unitsml.nist.gov/"; prefix, or a 
"http://www.bipm.org/vim/"; one.  (06)
Joel  (07)
_________________________________________________________________
Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/ 
Config Subscr: http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/ 
Unsubscribe: mailto:ontolog-forum-leave@xxxxxxxxxxxxxxxx
Shared Files: http://ontolog.cim3.net/file/
Community Wiki: http://ontolog.cim3.net/wiki/ 
To join: http://ontolog.cim3.net/cgi-bin/wiki.pl?WikiHomePage#nid1J
To Post: mailto:ontolog-forum@xxxxxxxxxxxxxxxx  (08)