XML 2001: open and balanced
13:44, 17 Dec 2001 UTC | Eric van der Vlist

Lauren Wood XML 2001, opened by its new chair Lauren Wood, marks the arrival of XML schema languages and a new competition between the W3C and ISO for XML standardization.

XML 2001 has been a successful start in the attempt to give new momentum to the IDEAlliance (ex GCA) conferences, by appointing new chairs Lauren Wood and Edd Dumbill (XML Europe 2002). XML 2001 was also a personal success for Lauren Wood, who able to keep the conference buoyant -- unlike a number of conferences held in the US since September 11 -- by bringing back key contributors such as James Clark and Rick Jelliffe, who were absent from previous conferences.

Among the memorable themes from the conference was the surprising persistence of the quarrel between RDF (W3C) and Topic Maps (ISO) efforts, whose convergence seems to be taking longer than expected. XML schema languages also had a significant presence in many of the presentations.

Despite the recognition of the importance of XML schema languages in XML 2000, the view this year was much more open: only six months old, RELAX NG is already being considered as a credible alternative to W3C XML Schema. One presentation even demonstrated that RELAX NG may be more generic, and can be used as a basis for a layered implementation of W3C XML Schemas.

Progress at the W3C towards specifying a processing model for XML that includes multiple operations such as validation, inclusion, transformation and querying seems to be slowing under the weight of existing specifications, allowing ISO to take the initiative. James Mason announced the start of an effort to rationalize the range of existing schema languages. This will unite a basic processing model with grammar based (RELAX NG), rule based (Schematron), and object-oriented (W3C XML Schema) languages. James Clark, Murata MAKOTO, Rick Jelliffe and Ken Holman will all be participating in this effort.

The W3C "startup," propelled by the initial success of XML, seems to have reached the point where its size and the weight of its legacy places it in the same category as the major standard organizations, and makes it therefore less competitive.

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Newest comments

Re: XML 2001: open and balanced (Steve Pepper - 15:44, 3 Jan 2002)
Why this insistence that there is a "quarrel" between RDF (W3C) and Topic Maps (ISO)? I know of no q ...
Re: XML 2001: open and balanced (Edd Dumbill - 08:54, 20 Dec 2001)
> I've been all over the XML web sites, and never heard of "RELAX NG" -- is this a little, journalis ...
Re: XML 2001: open and balanced (Mark Evans - 01:27, 20 Dec 2001)
I've been all over the XML web sites, and never heard of "RELAX NG" -- is this a little journalistic ...
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