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Various updates to HTTP Protocol editor's draft

From: Chimezie Ogbuji <ogbujic@ccf.org>
Date: Mon, 02 Aug 2010 16:37:29 -0400
To: "SPARQL Working Group WG" <public-rdf-dawg@w3.org>
Message-ID: <C87CA4C9.12B04%ogbujic@ccf.org>
I've updated the editor's draft of the SPARQL 1.1 Uniform HTTP Protocol for
Managing RDF Graphs, addressing the outstanding issues, comments, and
feedback.  At a high-level the changes consist of replacing the term
Networked RDF knowledge with RDF knowledge, replacing the term
Network-manipulable RDF dataset with Network-manipulable Graph Store, and
reconciling definitions from the SPARQL Update document:

- The definition of what a Graph Store is
- Defining a Network-manipulable Graph Store as a subset of a Graph Store
comprised only of named graphs that can be manipulated within the HTTP
protocol
- Clarification of language regarding whether or not the Graph Store records
the existence of empty graphs

The terminology has been tightened up.  The sections regarding graph
management operation now have text better clarifying appropriate response
codes (only where clarity is needed) and deferring to the HTTP 1.1
specification for the details of the rest.  Text clarifying the scenario
where a graph IRI is embedded and there is no base URI in the payload has
been added, but examples are still pending.

A new section has been added: Ambiguity Regarding the Range of HTTP GET
(Informative).  It discusses the issue of ambiguity regarding the range
of the dereference function, clarifies how this issue relates to graph IRIs,
RDF knowledge, information resources, and the rules of the httpRange-14
resolution (in particular, the first rule) .  The rule is quoted inline and
the resolution is linked from the text.  Overall, it clarifies why HTTP GET
requests to RDF knowledge should respond with:

- 200 Ok, if it exists
- 404 Not Found, if it doesnt

It also describes why 303 (See Other) is not appropriate as a response to
HTTP GET requests that identify existing RDF knowledge.

-- Chime


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Received on Monday, 2 August 2010 20:38:13 GMT

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