- From: Len Bullard <cbullard@HiWAAY.net>
- Date: Thu, 28 Nov 1996 16:23:30 -0600
- To: Jon Bosak <bosak@atlantic-83.Eng.Sun.COM>
- CC: tallen@fsc.fujitsu.com, w3c-sgml-wg@w3.org
Jon Bosak wrote: > > [Terry Allen:] > > | ISBNs precisely do identify classes of identical physical objects. > | The paperback and hardback realizations of the same text (nonphysical > | object) printed exactly the same way commonly have different ISBNs. > | Furthermore, sloppy publishers sometimes do not change the ISBN of a > | book when they issue a revised edition. ISBNs are about the worst > | possible illustration of URNs. > > You're right, that was a terrible example. Legal citations might have > been better. > > Jon Ah, but it is interesting how many real world examples of URNs you can come up with regardless of how usable they are. Please, do philosophize on with some more illustrations. How are URNs and SGML catalogs related? What happens if an SGML catalog contains more than one of these kinds of examples? How and where does a URN begin to break down? How does the URL make this less likely to happen? A URN is cited in VRML now. I will get the text and post it for comparison after the TurkeyFestFever ends later tonight. BTW, just in the translations provided, I can show where two books have different contents. The printed copy of the Quran has a chapter called "The Booty" whereas the text Jon provided calls this "The Spoils of War". So, physical? Are translations different objects logically? len
Received on Thursday, 28 November 1996 17:23:21 UTC