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News Release: World Wide Web Consortium Releases First Version of GRDDL Specification

From: Janet Daly <janet@w3.org>
Date: Tue, 24 Oct 2006 09:57:37 -0400
Message-Id: <8ECC172A-DC8E-47CA-9824-B77407906A87@w3.org>
To: w3c-news@w3.org

Today, the World Wide Web Consortium forged an important link between  
Semantic Web and microformats communities. With "Gleaning Resource  
Descriptions from Dialects of Languages", or GRDDL (pronounced  
"griddle"), software can automatically extract information from  
structured Web pages to make it part of the Semantic Web. Those  
accustomed to expressing structured data with microformats in XHTML  
can thus increase the value of their existing data by porting it to  
the Semantic Web, at very low cost. For more information, please  
contact Janet Daly <janet@w3.org> at +1 617 253 5884, or the W3C  
Communications Team representative in your region.


World Wide Web Consortium Releases First Version of GRDDL Specification
GRDDL Links the Semantic Web and Microformats

Web resources:
	This press release
	in English: http://www.w3.org/2006/10/grddl-pressrelease.html.en
	in French: http://www.w3.org/2006/10/grddl-pressrelease.html.fr
	in Japanese: http://www.w3.org/2006/10/grddl-pressrelease.html.ja

  "Gleaning Resource Descriptions from Dialects of Languages"  or GRDDL
	Specification: http://www.w3.org/TR/2006/WD-grddl-20061024/
	Primer: http://www.w3.org/TR/grddl-primer/
	Use Cases: http://www.w3.org/TR/grddl-scenarios/

W3C's Semantic Web Activity
	http://www.w3.org/2001/sw/

Microformats
	http://www.microformats.org

http://www.w3.org/ -- 24 October 2006 -- Today, the World Wide Web  
Consortium forged an important link between Semantic Web and  
microformats communities. With "Gleaning Resource Descriptions from  
Dialects of Languages", or GRDDL (pronounced "griddle"), software can  
automatically extract information from structured Web pages to make  
it part of the Semantic Web. Those accustomed to expressing  
structured data with microformats in XHTML can thus increase the  
value of their existing data by porting it to the Semantic Web, at  
very low cost.

W3C invites community review of this First Public Working Draft,  
published by the GRDDL Working Group.

Different Needs, Different Ways to Express Data

One aspect of recent developments some people call "Web 2.0" involves  
applications based on combining  in "mash-ups"  various types of  
data that are spread all around on the Web. A number of active  
communities innovating on the Web share the goal of sharing data such  
as calendar information, contact information, and geopositioning  
information. These communities have developed diverse social  
practices and technologies that satisfy their particular needs. For  
instance, search engines have had great success using statistical  
methods while people who share photos have found it useful to tag  
their photos manually with short text labels. Much of this work can  
be captured via "microformats". Microformats refer to sets of simple,  
open data formats built upon existing and widely adopted standards,  
including HTML, CSS and XML.

This wave of activity has direct connections to the essence of the  
Semantic Web. The Semantic Web-based communities have pursued ways to  
improve the quality and availability of data on the Web, making it  
possible for more intensive data-integration and more diverse  
applications that can scale to the size of the Web and allow even  
more powerful mash-ups. The Web-based set of standards that supports  
this work is known as the Semantic Web stack. The foundations of the  
Semantic Web stack meet the requirements for formality of some  
applications such as managing bank statements, or combining volumes  
of medical data.

Each approach to "getting your data out there" has its place. But why  
limit yourself to just one approach if you can benefit, at low cost,  
from more than one? As microformats users consider more uses that  
require data modeling, or validation, how can they take advantage of  
their existing data in more formal applications?

A Bridge from Flexible Web Applications to the Semantic Web

GRDDL is the bridge for turning data expressed in an XML format (such  
as XHTML) into Semantic Web data. With GRDDL, authors transform the  
data they wish to share into a format that can be used and  
transformed again for more rigorous applications.

The recently published GRDDL Use Cases provides insight into why this  
is useful through a number of scenarios, including scheduling a  
meeting, comparing information from various retailers before making a  
purchase, and extracting information from wikis to facilitate e- 
learning. Once data is part of the Semantic Web, it can be merged  
with other data (for example, from a relational database, similarly  
exposed to the Semantic Web) for queries, inferences, and conversion  
to other formats.

The GRDDL Primer shows several practical examples of "how to GRDDL"  
an ordinary XHTML document that uses microformats. The practical  
impact on current authoring practices of adopting GRDDL is minor;  
only small changes are required to existing documents. GRDDL is thus  
ready to deploy, at very low cost.

Contact Americas, Australia --
     Janet Daly, <janet@w3.org>, +1.617.253.5884 or +1.617.253.2613
Contact Europe, Africa and the Middle East --
     Marie-Claire Forgue, <mcf@w3.org>, +33.492.38.75.94
Contact Asia --
     Yasuyuki Hirakawa <chibao@w3.org>, +81.466.49.1170


About the World Wide Web Consortium [W3C]

The World Wide Web Consortium (W3C) is an international consortium  
where Member organizations, a full-time staff, and the public work  
together to develop Web standards. W3C primarily pursues its mission  
through the creation of Web standards and guidelines designed to  
ensure long-term growth for the Web. Over 400 organizations are  
Members of the Consortium. W3C is jointly run by the MIT Computer  
Science and Artificial Intelligence Laboratory (MIT CSAIL) in the  
USA, the European Research Consortium for Informatics and Mathematics  
(ERCIM) headquartered in France and Keio University in Japan,and has  
additional Offices worldwide. For more information see http:// 
www.w3.org/
Received on Tuesday, 24 October 2006 13:57:52 UTC

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