- From: Patrick Stickler <patrick.stickler@nokia.com>
- Date: Fri, 03 Oct 2003 13:22:33 +0300
- To: "ext Daniel R. Tobias" <dan@tobias.name>, Sandro Hawke <sandro@w3.org>, "Hammond, Tony (ELSLON)" <T.Hammond@elsevier.com>, "'Eric Hellman'" <eric@openly.com>, <uri@w3.org>
On 2003-10-02 21:59, "ext Daniel R. Tobias" <dan@tobias.name> wrote: > On 2 Oct 2003 at 13:55, Sandro Hawke wrote: > >> So it seems easier to you to get the info: scheme approved and >> deployed than to deploy a web server? If people were instead >> encouraged to use >> >> http://niso.org/2003/isbn/0-13-103805-2 >> >> then NISO could provide whatever information it thought was helpful to >> people who ended up doing an HTTP GET on it. If it wanted to >> mainting a proper ISBN database, it could provide information about >> the book at that address; otherwise it could just point to some ISBN >> resources and let people figure it out themselves. > > But if, instead, a non-HTTP URI is used as the "canonical" means of > referring to books by ISBN (as, in fact, the "urn:isbn" namespace has > actually been registered and has an RFC defining it, as I recall), > then the end user has more flexibility in deciding what information > he/she wishes to retrieve on it. When typed into a browser or > followed as a hyperlink, a "http" URI will always cause the resource > set up by the "owner" of that URI to be retrieved (or failed to be > retrieved in the case of 404 or DNS errors), while another scheme is > capable of user-driven configurability with regard to how to treat an > attempt to dereference it (or would be if browsers were sufficiently > advanced to give this capability, as I'd hope they'd be if such URIs > were in wide use). I'd be able to set my browser to go to a page > related to that ISBN at niso.org, or amazon.com, or some other site > of my own choosing, or make a database query, or bring up a local > file from my own system, or whatever else I chose. Such 3rd party support is also provided by URIQA, but without losing the fundamental ability to obtain authoritative information based on the URI alone without having to know *where* to look for that authoritative information. A given info: URI, by itself, cannot tell you where to look for its authoritative interpretation. That IMO is a fatal shortcoming within the context of the Web and SW. (if you never plan for info: URIs to be used in such a context, then pretty much everything I say on this topic is irrelevant). Cheers, Patrick
Received on Friday, 3 October 2003 06:22:46 UTC