- From: Larry Masinter <LMM@acm.org>
- Date: Mon, 17 Oct 2005 13:52:40 -0700
- To: "'Etan Wexler'" <ewexler@stickdog.com>
- Cc: uri@w3.org
> >>You are suggesting it's no problem for one speaker group to be able > >>to tag things with addr-spec values that plainly say "this is > >>mine" > > > > The appearance of an addr-spec value in a tag URI does not > > "plainly say" any such thing. It's merely a convenient > > way of making sure there are no conflicts. This came up > > in the discussion of the "tag" URI, although the point isn't > > as clear as it could be in the actual document. > > Somebody please provide pointers to archived discussion on the matter. To "plainly say" that "this is mine", you have to control the resolution mechanism as well as the minting. If there is no authoritative resolution mechanism, that must mean that I have as much authority to say what tag:ewexler@stickdog.org,2005-10-15:Rightous_Truth means as you do, once you've minted it. If you think that by minting a "tag" URI, you also have the right to control what others mean by it, well, that's inconsistent with the arguments that "tag" wasn't really another URN scheme, because the addr-spec wasn't really an "authority", and there is no authoritative resolution mechanism: http://www.taguri.org/ What does a given tag denote? That's undefined in the tag specification; you'd need to look at the particular protocol in which they are used. Tags constitute only a scheme for minting identifiers: there is no authoritative resolution mechanism. https://datatracker.ietf.org/public/recent_announcement.cgi?command=show_detail&ballot_id=349 There is no authoritative resolution mechanism for tag URIs; they may, however, be used as entity identifiers. http://lists.w3.org/Archives/Public/uri/2005Mar/0007 while with 'tag', there is no authority to ask, and all of the semantics are inferred from the context of use. http://lists.w3.org/Archives/Public/uri/2005Mar/0010 Or take the Atom blog entry with an id of tag:blogger.com,1999:blog-3063265 -- is there something wrong because blogger.com might not have a direct way of knowing exactly what it was the id of? http://lists.w3.org/Archives/Public/uri/2003Oct/0081 no function other than uniqueness http://lists.w3.org/Archives/Public/uri/2002Jan/0069 I'm philosophically opposed to the notion that there is such a thing as "the" resource. There are names; there are naming contexts that map names to other names or to resources; and there are resources (addressible functions). "The" resource that you speak of can only mean "the resource that this name maps to in this context". http://lists.w3.org/Archives/Public/uri/2003Sep/0055 For "tag", again, the goal is to avoid any definition of any operational means of identification, http://lists.w3.org/Archives/Public/uri/2001Apr/0064.html it'll be software that produces tags by-and-large
Received on Monday, 17 October 2005 20:52:26 UTC