- From: Pat Hayes <phayes@ihmc.us>
- Date: 2010年1月15日 23:39:53 -0600
- To: "Michael Schneider" <schneid@fzi.de>
- Cc: "Sampo Syreeni" <decoy@iki.fi>, "Semantic Web" <semantic-web@w3.org>
- Message-Id: <04518DFA-9445-4F43-81B4-BB1102BC05A7@ihmc.us>
On Jan 15, 2010, at 4:39 PM, Michael Schneider wrote: > Sampo Syreeni wrote: > >> On 2010年01月15日, Pat Hayes wrote: >> >>> Well, simple rules are sometimes good guides to behavior. I take it >>> that you would prefer the much more complicated advice, to let it >>> all >>> hang out. >> >> As for me, I'd make it straight. What do we want from the standard? >> Spell it out loud, now, > > Ok, so I will tell you what /I/ want, and I will spell it out loud: > > NO REMOVAL OR DEPRECATION (NOT EVEN "SILENTLY") > OF ANY FEATURE CURRENTLY EXISTING IN RDF! > > Isn't that a very simple rule? > > And I believe it matches quite well the first few mails in this > thread which > sounded to me as if many people "do not want to fix what isn't > actually > broken". But some of it IS broken. The plain-literal/xsd:string mixup is broken. The special status of rdf:XMLLiteral is broken. Containers are broken, they were broken from the get-go. (Not collections, ie lists, which are ugly but useful.) IMO, rdf:seeAlso is broken, because although it does get used, the uses are nowhere even remotely compatible with one another. Reification is broken, because it has never been given a satisfactory semantics. (I would bet a good beer that there isn't a single deployed use of RDF reification that strictly conforms to what the spec says about it, normatively.) Arguably, the whole business of D-interpretations for datayping is broken: not because its actually wrong, but because nobody pays it any attention. What everyone actually does is simply assume that the XML schema datatypes are built-in as a part of RDF, which is probably what we should have said in the spec itself, instead of trying to be "general-purpose" about datatyping. IMO, the RDF/RDFS distinction is broken, but maybe we should just not go there, I admit. Pat > > Regards, > Michael > > -- > Dipl.-Inform. Michael Schneider > Research Scientist, Information Process Engineering (IPE) > Tel : +49-721-9654-726 > Fax : +49-721-9654-727 > Email: michael.schneider@fzi.de > WWW : http://www.fzi.de/michael.schneider > = > ====================================================================== > FZI Forschungszentrum Informatik an der Universit舩 Karlsruhe > Haid-und-Neu-Str. 10-14, D-76131 Karlsruhe > Tel.: +49-721-9654-0, Fax: +49-721-9654-959 > Stiftung des b?rgerlichen Rechts, Az 14-0563.1, RP Karlsruhe > Vorstand: Prof. Dr.-Ing. R?diger Dillmann, Dipl. Wi.-Ing. Michael > Flor, > Prof. Dr. Dr. h.c. Wolffried Stucky, Prof. Dr. Rudi Studer > Vorsitzender des Kuratoriums: Ministerialdirigent G?nther Le?nerkraus > = > ====================================================================== > > ------------------------------------------------------------ IHMC (850)434 8903 or (650)494 3973 40 South Alcaniz St. (850)202 4416 office Pensacola (850)202 4440 fax FL 32502 (850)291 0667 mobile phayesAT-SIGNihmc.us http://www.ihmc.us/users/phayes
Received on Saturday, 16 January 2010 05:41:04 UTC