W3C home > Mailing lists > Public > public-data-shapes-wg@w3.org > January 2015

Re: shapes-ISSUE-19 (S35 not RDF): S35 appeals to something that is not RDF

From: Arthur Ryman <ryman@ca.ibm.com>
Date: Thu, 8 Jan 2015 15:08:27 -0500
To: RDF Data Shapes Working Group <public-data-shapes-wg@w3.org>
Message-ID: <OFC884677C.F774F11B-ON85257DC7.006D2118-85257DC7.006EA354@ca.ibm.com>
I have updated the wiki [1] with the following additional text:

This user story is motivated by Linked Data and how information resources 
are created (e.g. via HTTP POST) or modified (e.g. via HTTP PUT). In these 
situations, the body of the HTTP request has an RDF content type (RDF/XML, 
Turtle, JSON-LD, etc.). The server typically needs to verify that the body 
of the request satisfies some application-specific constraints. If the 
request does not satisfy the constraints them it will fail the request and 
respond with 400 Bad Request or some similar response. 
This user story draws attention to the fact that RDF content is in general 
a graph. The concept of RDF graph is defined in 
http://www.w3.org/TR/rdf11-concepts/#section-rdf-graph. A general RDF 
graph may not be connected and in fact disconnected RDF graphs do appear 
in real-world Linked Data specifications. Therefore, the output of this 
workgroup must support the description of constraints on general RDF 
graphs, connected or not. 
[1] 
https://www.w3.org/2014/data-shapes/wiki/User_Stories#S35:_Describe_disconnected_graphs
_________________________________________________________
Arthur Ryman, PhD
Distinguished Engineer | Master Inventor | Academy of Technology
Chief Data Officer
SWG | Rational
905.413.3077 (phone) | 416.939.5063 (cell)
IBM InterConnect 2015




From:   "RDF Data Shapes Working Group Issue Tracker" 
<sysbot+tracker@w3.org>
To:     public-data-shapes-wg@w3.org
Date:   12/19/2014 01:17 PM
Subject:        shapes-ISSUE-19 (S35 not RDF): S35 appeals to something 
that is not RDF



shapes-ISSUE-19 (S35 not RDF): S35 appeals to something that is not RDF

http://www.w3.org/2014/data-shapes/track/issues/19

Raised by: Peter Patel-Schneider
On product: 

S35 
https://www.w3.org/2014/data-shapes/wiki/User_Stories#S35:_Describe_disconnected_graphs 
talks about a containment relationship that is implicit because a node is 
in a graph.  This appears to be outside the scope of RDF.
Received on Thursday, 8 January 2015 20:08:55 UTC

This archive was generated by hypermail 2.3.1 : Thursday, 8 January 2015 20:08:56 UTC