20030331-advance.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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<head>
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name="generator" />
<title>
RDFCore Implementation Report, Prosed Recommendation request
</title>
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<h1>
RDFCore Working Group Implementation Report, PR request
</h1>
<address>
$Revision: 1.39 $ of $Date: 2003/12/03 14:43:19 $ by $Author:
bmcbride $<br />
see <a href="#changes">changelog since 7Nov WG decision</a>
below.<br />
Brian McBride, Dan Brickley and Eric Miller
</address>
<p>
Dear W3C Director,
</p>
<p>
WhereAs
</p>
<ul>
<li>
you
<a href="http://www.w3.org/2001/sw/RDFCoreWGCharter">chartered</a>
the <a href="http://www.w3.org/2001/sw/RDFCore/">RDFCore
Working Group</a> to:
<ul>
<li>
fix, clarify and improve the specification of RDF's
abstract model and XML syntax
</li>
<li>
to complete the work on RDF vocabulary description
</li>
<li>
provide an account of the relationships between the
basic components of RDF (Model, Syntax, Schema) and the
larger XML family of recommendations.
</li>
</ul>
</li>
<li>
we have developed <a href="#Titles">specification, test
materials, and supplementary documentation</a> for RDF
</li>
<li>
this specification and other materials have received
<a href="#review">wide review</a>, and we have addressed
the issues raised in the working group and a substantial
surrounding community
</li>
<li>
we have implementation experience to validate the design
</li>
</ul>
<p>
The RDFCore Working Group decided (
<a href="http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2003Nov/0063.html">
2003-11-07 meeting record</a> in progress) to request that
you advance this specification to W3C Proposed Recommendation
and commence W3C Advisory Committee review.
</p>
<p>
A
<a href="http://www.w3.org/2001/sw/RDFCore/20030331-advance.html">
version</a> of this document which may have been updated,
possibly with new implementation experience or to reflect the
status of the specifications, is linked from the
<a href="http://www.w3.org/2001/sw/RDFCore/#documents">RDFCore
overview page</a>.
</p>
<h2>
<a name="Titles" id="Titles">Titles, Abstracts, and
Status</a>
</h2>
<p>
The Working Group has developed the following specification,
test materials, and supplementary documentation for RDF:
</p>
<ul>
<!-- ordered by 7Nov agenda -->
<li>
<a href="http://www.w3.org/TR/2003/WD-rdf-syntax-grammar-20031010/">
RDF/XML Syntax Specification (Revised)</a><br />
W3C Working Draft 10 October 2003<br />
Dave Beckett, ed.
<p>
<a href="http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-syntax-grammar-20030117/">
Editor's draft</a> notes
<a href="http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-syntax-grammar-20030117/#section-Changes">
changes since 10 Oct last call</a>. <em>(v 1.50 includes
changes discussed 7Nov)</em>
</p>
</li>
<li>
<a href="http://www.w3.org/TR/2003/WD-rdf-schema-20031010/">
RDF Vocabulary Description Language 1.0: RDF
Schema</a><br />
W3C Working Draft 10 October 2003<br />
Dan Brickley, R.V. Guha, eds.
<p>
<em>Changes as discussed in replies to commentors
<a href="http://lists.w3.org/Archives/Public/www-rdf-comments/2003OctDec/0057.html">
17 Oct</a> and
<a href="http://lists.w3.org/Archives/Public/www-rdf-comments/2003OctDec/0124.html">
7 Nov</a> are to appear in an
<a href="http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-schema-20030117/">
editor's draft</a> presently.</em>
</p>
</li>
<li>
<a href="http://www.w3.org/TR/2003/WD-rdf-mt-20031010/">RDF
Semantics</a><br />
W3C Working Draft 10 October 2003<br />
Patrick Hayes, ed.
<p>
<em>Editorial revisions in response to a
<a href="http://lists.w3.org/Archives/Public/www-rdf-comments/2003OctDec/0052.html">
detailed review of the proofs by ter Horst</a> have been
integrated into the
<a href="http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-mt-20030117/">
editor's draft</a>.
<a href="http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-mt-20030117/#change">
Changes since the 10 Oct WD</a> are noted.</em>
</p>
</li>
<li>
<a href="http://www.w3.org/TR/2003/WD-rdf-primer-20031010/">
RDF Primer</a><br />
W3C Working Draft 10 October 2003<br />
Frank Manola, Eric Miller, eds.
<p>
<em>editorial updates in response to comments submitted
<a href="http://lists.w3.org/Archives/Public/www-rdf-comments/2003OctDec/0038.html">
10 Oct</a>,
<a href="http://lists.w3.org/Archives/Public/www-rdf-comments/2003OctDec/0097.html">
5 Nov</a>,
<a href="http://lists.w3.org/Archives/Public/www-rdf-comments/2003OctDec/0121.html">
7 Nov</a> and
<a href="http://lists.w3.org/Archives/Public/www-rdf-comments/2003OctDec/0120.html">
7 Nov</a> are to appear in an
<a href="http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-primer-20030117/">
editor's draft</a> presently</em>.
</p>
</li>
<li>
<a href="http://www.w3.org/TR/2003/WD-rdf-testcases-20031010/">
RDF Test Cases</a><br />
W3C Working Draft 10 October 2003<br />
Jan Grant, Dave Beckett, eds.
<p>
<a href="http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-testcases-20030117/">
editor's draft</a> notes
<a href="http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-testcases-20030117/#change_log">
recent changes</a>.
</p>
</li>
<li>
<a href="http://www.w3.org/TR/2003/WD-rdf-concepts-20031010/">
Resource Description Framework (RDF): Concepts and Abstract
Syntax</a><br />
W3C Working Draft 10 October 2003<br />
Graham Klyne, Jeremy Carroll, eds.
<p>
<em><a href="http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-concepts-20030117/">
Editor's draft</a> notes
<a href="http://www.w3.org/2001/sw/RDFCore/TR/WD-rdf-concepts-20030117/#section-Revisions2">
changes since the 10 Oct WD</a>.</em>
</p>
</li>
</ul>
<h2 id="review">
Summary of Review
</h2>
<p>
Review of the above drafts began drafts of
<a href="http://www.w3.org/TR/2001/WD-rdf-mt-20010925/">RDF
Semantics</a> and
<a href="http://www.w3.org/TR/2001/WD-rdf-syntax-grammar-20010906/">
RDF Syntax</a> in September 2001 and
<a href="http://www.w3.org/TR/2002/WD-rdf-schema-20020430/">RDF
Schema</a> in April 2002. Remaining parts of the original RDF
Model and Syntax specification appeared subsequently in
<a href="http://www.w3.org/TR/rdf-concepts/">RDF Concepts and
Abstract Syntax</a>, supplemented by the
<a href="http://www.w3.org/TR/rdf-primer/">RDF Primer</a>.
</p>
<p>
The working group addressed
<a href="http://lists.w3.org/Archives/Public/www-rdf-comments/">
comments on these drafts</a> on a best-effort basis as it
worked thru its
<a href="http://www.w3.org/2000/03/rdf-tracking/">list of 60+
issues</a>.
</p>
<p>
After resolving all of the issues, last call working drafts
were published in January 2003 and
<a href="http://www.w3.org/2001/sw/RDFCore/20030123-issues/">last
call comments</a> were formally addressed. The Working Group
made a number of changes in response to these comments, and
then issued a second last call in October 2003.
<a href="http://www.w3.org/2001/sw/RDFCore/20031010-comments/">
Comments on the 2nd last call</a> were also formally
addressed.
</p>
<p>
While the vast majority of the issues were resolved by
consensus,
<a href="http://www.w3.org/2000/03/rdf-tracking/#Objections">three
issues with outstanding objections</a> remain: datatypes, XML
Literals, and validating RDF.
</p>
<h2>
Implementation Experience and Endorsement
</h2>
<p>
The the
<a href="http://www.w3.org/2003/11/results/rdf-core-tests">RDF
Core test case results</a> and the following implementation
exprience validate the design and motivates widespread
deployment.
</p>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://sesame.aidministrator.nl/">Sesame</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Arjohn Kampman Jeen Broekstra
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
Java
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite>Sesame is an Open Source RDF Schema-based
Repository and Querying facility</cite><br />
<br />
- <a href="http://sesame.aidministrator.nl/">Sesame
aidministrator nederland bv Home Page</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://www.driverdf.org/">Drive</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Rahul Singh
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
C#
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite>Drive is an RDF parser written in C# for the .NET
platform. Its fully compliant with the W3C RDF syntax
specification and is available as open source under the
terms of the GNU LGPL license.</cite><br />
<br />
- <a href="http://www.driverdf.org/">Drive Home
Page</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://www.redland.opensource.ac.uk/raptor/">Raptor
RDF Parser Toolkit</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Dave Beckett
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
C
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite><a href="http://www.redland.opensource.ac.uk/raptor/">
Raptor</a> is a free software/Open Source C library
that parses RDF syntaxes such as RDF/XML and N-Triples
into RDF triples.<br />
<br />
Raptor was designed to work closely with the
<a href="http://www.redland.opensource.ac.uk/">Redland
RDF library</a> (<b>R</b>DF <b>P</b>arser
<b>T</b>oolkit f<b>o</b>r <b>R</b>edland) but is
entirely separate. It is a portable library that works
across many POSIX systems (Unix, GNU/Linux, BSDs, OSX,
cygwin, win32). Raptor has no memory leaks and is
fast.</cite><br />
<br />
-
<a href="http://www.redland.opensource.ac.uk/raptor/">Raptor
Home Page</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://tap.stanford.edu/">TAP</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
R.V. Guha, Rob McCool
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value"></td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite><a href="http://tap.stanford.edu">TAP</a> is an
application framework for Building the Semantic Web.
TAP's goals are to enable the Semantic Web by providing
some simple tools that make the web a giant distributed
Database. TAP is open source development effort by R.V.
Guha (IBM) and Rob McCool (Stanford) which provide a
set of protocols and conventions that create a coherent
whole of independantly produced bits of information,
and a simple API to navigate the graph. Local,
independantly managed knowledge bases can be aggegated
to form selected centers of knowledge useful for
particular applications.</cite><br />
<br />
- <a href="http://www.w3.org/2002/05/tap/">TAP - An
Application Framework for Building the Semantic Web</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://redfoot.net/">Redfoot</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Daniel Krech
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
Python
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite><a href="http://redfoot.net/">Redfoot</a> is a
program for managing and sharing RDF information using
<a href="http://rdflib.net/">RDFLib</a>. Redfoot is
currently geared mostly to the developer, but is
shifting in the direction of the end user.</cite><br />
<br />
- <a href="http://redfoot.net/">Redfoot Home Page</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://www.agfa.com/w3c/euler/">Euler</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Jos De Roo
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
C#
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite>EulerSharp is an inference engine supporting
logic based proofs. It is a backward-chaining reasoner
enhanced with Euler path detection and will tell you
whether a given set of facts and rules supports a given
conclusion. It is interoperable with W3C Cwm.</cite> -
Sourceforge
<a href="http://sourceforge.net/projects/eulersharp">EulerSharp</a>
project
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://www-uk.hpl.hp.com/people/jjc/arp/">ARP
Another RDF Parser</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Jeremy Carroll
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
Java
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite>The Jena RDF/XML Parser</cite><br />
<br />
-
<a href="http://www-uk.hpl.hp.com/people/jjc/arp/">ARP</a>
Home Page
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://www.joseki.org">Joseki</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Andy Seaborne
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
Java
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite>Joseki is a server for publishing RDF models on
the web. Models have URLs and they can be accessed by
query using HTTP GET. Joseki is part of the
<a href="http://jena.sourceforge.net/">Jena</a> RDF
toolkit. Joseki provides a coarse-grained
<a href="http://www.joseki.org/protocol.html">web
API</a> that is based on extracting a subgraph from the
published RDF. The extracted RDF can then be processed
locally with the fine-grained API provided by
Jena.</cite><br />
<br />
- <a href="http://www.joseki.org/">Joseki Home
Page</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://www.gingerall.com/charlie/ga/xml/p_rdf.xml">
PerlRDF</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
info@gingerall.com
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
Perl
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite>PerlRDF is a Perl implementation of RDF storage,
parser and serializer. The storage's functionality is
store, delete and query statements, where query means
ask about existence of statements conforming a given
mask (subject, predicate, object). Three storages are
available - in memory, file (DB_File) and DBMS
(PostgreSQL). The parser makes use of XML::Parser and
supports full RDF/XML syntax including changes from
2003. The serializer tries to preserve anonymous nodes
and to compact xml by grouping statements with common
subject. Besides the basic querying, there is a
resource-centric query language implemented. RDF::Core
also provides a basic object oriented interface for the
RDF Schema manipulation.</cite><br />
<br />
-
<a href="http://www.gingerall.com/charlie/ga/xml/p_rdf.xml">
PerlRDF Home Page</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://www.w3.org/2001/11/IsaViz/">IsaViz</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Emmanuel Pietriga
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
Java
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite>IsaViz is a visual environment for browsing and
authoring <a href="http://www.w3.org/RDF/">RDF</a>
models represented as graphs.</cite><br />
<br />
- <a href="http://www.w3.org/2001/11/IsaViz/">IsaViz
Home Page</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://rdflib.net">RDFlib</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Daniel Krech
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
Python
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite><a href="rdflib/">RDFLib</a> is a
<a href="http://python.org/">Python</a> library for
working with <a href="http://www.w3.org/RDF/">RDF</a>,
a simple yet powerful language for representing
information. The library contains an
<a href="http://www.w3.org/TR/rdf-syntax-grammar/">RDF/XML</a>
parser/serializer, a
<a href="http://rdflib.net/stable/doc/triple_store.html">
TripleStore</a>, an
<a href="http://rdflib.net/stable/doc/InformationStore.html">
InformationStore</a> and various store backends
(InMemory, SleepyCat BTree, ZODB BTree).</cite><br />
<br />
- <a href="http://rdflib.net/">RDFLib Home Page</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://wilbur-rdf.sourceforge.net/docs/">Wilbur</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Ora Lassila
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
Lisp
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite>Wilbur is a toolkit for writing RDF-enabled
software. Wilbur is written in CLOS, and includes an
RDF parser, a DAML parser, an XML parser, an API for
managing "RDF data", and a simple HTTP client; it also
includes a simple (and at this point experimental)
frame system on top of RDF & DAML.</cite><br />
<br />
-
<a href="http://wilbur-rdf.sourceforge.net/docs/">Wilbur:
Nokia's RDF Toolkit for CLOS</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://www.hpl.hp.com/semweb/jena2.htm">Jena2 -
A Semantic Web Framework</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Brian McBride
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
Java
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite>Jena is a Java framework for building Semantic
Web applications. It provides a programmatic
environment for RDF, RDFS and OWL, including a
rule-based inference engine. Jena is open source and
grown out of work with the HP Labs Semantic Web
Programme.</cite><br />
<br />
- <a href="http://jena.sourceforge.net/">Jena
Sourceforge project page</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://brownsauce.sourceforge.net/">BrownSauce
RDF Browser</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Damian Steer
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
Java
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite>There is RDF data all over the place, in XML
documents and sources like databases. Getting all that
data is impractical, and would be unreadable (to say
the least). So BrownSauce is an attempt to make
something which can browse that information.<br />
<br />
BrownSauce breaks the problem into two parts:
coarse-graining (breaking the data down into usable
chunks, like 'information about person X) and
aggregation (making those chunks from multiple
sources). The first part is done, and users can browse
more than one source using <em>rdfs:seeAlso</em>
references. Aggregation is currently being worked
on.<br />
<br />
BrownSauce runs as a local http server, or can be
added to a java web application server like
<a href="http://jakarta.apache.org/tomcat/">Tomcat</a>
or <a href="http://jetty.mortbay.org/">Jetty</a>. The
current interface is HTML and can be styled using CSS
(the HTML is marked up using classes relating to the
RDF). Other interfaces should be simple to
implement.</cite><br />
<br />
-
<a href="http://brownsauce.sourceforge.net/">BrownSauce
RDF Browser Home Page</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://www.intellidimension.com/default.rsp?topic=/pages/site/products/rdfgateway.rsp">
Intellidimension's RDF Gateway</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Geoff Chappell
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value"></td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite>RDF Gateway is a platform designed from the
ground up for the Semantic Web. It's an application
server, a web server, and a deductive RDF database
server all in one. RDF Gateway offers a familiar
programming model and language that enables today's web
and database developers to quickly begin creating
Semantic Web applications that can be easily deployed
to workstations and servers running RDF
Gateway.</cite><br />
<br />
-
<a href="http://www.intellidimension.com/default.rsp?topic=/pages/site/products/rdfgateway.rsp">
RDF Gateway Home Page</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://www.wiwiss.fu-berlin.de/suhl/bizer/rdfapi/">
RAP - RDF API for PHP</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Chris Bizer
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
PHP
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<cite>RDF API for PHP is a pure PHP software package
for parsing, manipulating and serializing RDF
models.</cite><br />
<br />
-
<a href="http://www.wiwiss.fu-berlin.de/suhl/bizer/rdfapi/">
RAP - RDF API for PHP Home Page</a>
</div>
</td>
</tr>
</table>
<hr />
<table summary="tool-summary" class="tool" width="100%"
cellpadding="5" border="0">
<tr>
<td valign="top" width="10%" class="attribute">
Title:
</td>
<td class="value">
<a href="http://www.ninebynine.org/Software/Intro.html#Swish">
Swish</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Contact:
</td>
<td class="value">
Graham Klyne
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Language:
</td>
<td class="value">
<a href="http://www.haskell.org/">Haskell</a>
</td>
</tr>
<tr>
<td valign="top" class="attribute">
Description:
</td>
<td class="value">
<div class="entry">
<p>
Swish is a toolkit for Semantic Web inference written
in <a href="http://www.haskell.org">Haskell</a>. It
is being developed to support simple Semantic web
applications, through the creation of generic and
specific command-line RDF inference programs, with a
particular view to inclusion of datatype-aware
reasoning. Datatype reasoning is seen as a way for
controlled inclusion of additional processing
capabilities into a simple RDF inference process.
</p>
<p>
The current released version of Swish contains a
Notation3 parser, together with graph comparison and
merging capabilities. A framework for implementing
various kinds of rules, including datatype constraint
reasoning, is at an advanced state of development,
and is hoped to be released before the end of 2003.
</p>
<p>
It is intended that this framework can be used as a
testbed for exploring RDF inference features required
to build real applications, a motivating example of
which is a network access control configuration
experiment undertaken as part of the SWAD-E project
(cf.
<a href="http://www.ninebynine.org/SWADE/Intro.html#HomeNetAccessDemo">
http://www.ninebynine.org/SWAD-E/Intro.html#HomeNetAccessDemo)</a>.
</p><br />
<br />
-
<a href="http://lists.w3.org/Archives/Public/www-rdf-interest/2003Jun/0032.html">
ANNOUNCE: SW Inferencing Skeleton in Haskell
(Swish)</a>, Graham Klyne, Fri, 06 Jun 2003
</div>
</td>
</tr>
</table>
<hr />
<h2 id="changes">
Changelog
</h2>
<p>
CVS log of changes since 7Nov WG decision:
</p>
<pre>
$Log: 20030331-advance.html,v $
Revision 1.39 2003/12/03 14:43:19 em
updated to make xhtml valid
Revision 1.38 2003/11/17 10:15:28 bmcbride
Added reference to WG version of request
Revision 1.37 2003/11/17 10:01:08 bmcbride
updated doc status
Revision 1.36 2003/11/14 18:52:39 bmcbride
Removed draft status and final @@'s
Revision 1.34 2003/11/13 20:24:28 em
added hr
Revision 1.33 2003/11/13 20:23:18 em
style changes
Revision 1.32 2003/11/13 20:22:00 em
style changes
Revision 1.31 2003/11/13 20:18:01 em
updated to wrap up impl section
Revision 1.30 2003/11/13 20:16:49 em
updated to wrap up impl section
Revision 1.29 2003/11/13 20:12:24 em
updated to wrap up impl section
Revision 1.28 2003/11/13 20:08:37 em
updated to wrap up impl section
Revision 1.27 2003/11/13 19:44:26 em
updated to fix merge problems in summary of review section
Revision 1.26 2003/11/13 19:41:25 em
updating implementation section
Revision 1.25 2003/11/12 22:33:58 connolly
rewrote summary of review, noting when 1st WDs went out,
telling good news about lots of issues resolved by
consensus.
left an @@ to represent the pending responses to LC2 comments
Revision 1.24 2003/11/12 21:49:48 connolly
punted pending edits on test, concepts to Brian
completed this pass of the titles section
Revision 1.23 2003/11/12 18:54:32 connolly
cited current primer, pending edits
Revision 1.22 2003/11/12 18:07:06 connolly
cited semantics LC2, editor's draft, noted pending changes
Revision 1.21 2003/11/12 15:39:27 connolly
finished citing schema for request-for-PR purposes; noted minor changes pending
Revision 1.20 2003/11/12 15:23:32 connolly
cited syntax spec: 10Oct LC version, editors draft, changes
Revision 1.19 2003/11/12 14:49:48 connolly
link WG decision, start change log
</pre>
</body>
</html>