- From: Larry Masinter <masinter@adobe.com>
- Date: Fri, 28 Oct 2011 00:59:31 -0700
- To: "'Jonathan Rees'" <jar@creativecommons.org>, "www-tag@w3.org" <www-tag@w3.org>
(stuck in my drafts folder) " The specification governing Uniform Resource Identifiers (URIs) [rfc3986] allows URIs to mean anything at all" can be read incorrectly. A spec usually "allows" something by enabling it, providing a mechanism for accomplishing it. of RFC 3986 does not itself enable or provide a mechanism for URIs to "mean anything at all", it just doesn't make restrictions that disallow that. ("tdb:" provides a mechanism, for example.) I’m not sure what to do with this. Maybe just "allows a URI to mean anything at all, or at least does not restrict the meaning". "To use a URI to mean something, an agent (a) selects a URI, (b) provides a definition of the URI in a manner that permits discovery by agents who encounter the URI, and (c) uses the URI." I don't agree with the order of (a) and (b). I think the order is more like (b) then (a), where (b) is "providing information which might be identified via a URI" and (a) is "putting together the URI which has the definition that leads to the meaning intended". Larry -- http://larry.masinter.net -----Original Message----- From: www-tag-request@w3.org [mailto:www-tag-request@w3.org] On Behalf Of Jonathan Rees Sent: Saturday, June 25, 2011 9:13 AM To: www-tag@w3.org Subject: Comments solicited: "Providing and discovering definitions of URIs" Comments solicited: "Providing and discovering definitions of URIs" (message being sent to www-tag, bcc: public-lod and semantic-web) As most of you know, the 9-year-old "httpRange-14" turf war is an annoyance and embarrassment in efforts to develop RDF, linked data, the Semantic Web, and Web architecture. As a step toward getting closure I've prepared a document (with the help of the TAG and the AWWSW task group): http://www.w3.org/2001/tag/awwsw/issue57/20110625/ which attempts to record the variety of approaches that have been offered. I have attempted to record in a neutral way all the main proposals that have been put forth and present them in a way that permits them to be compared. I'm sure I have failed to be completely neutral, but if so I'm confident you will tell me. How to actually get closure is yet to be determined, but a first step might be to get all the relevant information collected in this document so that we all know what the issues and opportunities are. This document is for informational purposes only and its future is not yet determined. I would have polished it a bit more but given current debate on www-tag and public-lod I felt it was more important to get it out than to tie up loose ends. Please comment on the www-tag@w3.org list. I will revise the document based on comments received. If you wish to review the debate please see http://www.w3.org/wiki/HttpRange14Webography Best Jonathan Abstract The specification governing Uniform Resource Identifiers (URIs) [rfc3986] allows URIs to mean anything at all, and this unbounded flexibility is exploited in a variety contexts, notably the Semantic Web and Linked Data. To use a URI to mean something, an agent (a) selects a URI, (b) provides a definition of the URI in a manner that permits discovery by agents who encounter the URI, and (c) uses the URI. Subsequently other agents may not only understand the URI (by discovering and consulting the definition) but may also use the URI themselves. A few widely known methods are in use to help agents provide and discover URI definitions, including RDF fragment identifier resolution and the HTTP 303 redirect. Difficulties in using these methods have led to a search for new methods that are easier to deploy, and perform better, than the established ones. However, some of the proposed methods introduce new problems, such as incompatible changes to the way metadata is written. This report brings together in one place information on current and proposed practices, with analysis of benefits and shortcomings of each. The purpose of this report is not to make recommendations but rather to initiate a discussion that might lead to consensus on the use of current and/or new methods. (this is TAG ISSUE-57 / ACTION-579)
Received on Friday, 28 October 2011 08:00:16 UTC