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Re: PIs considered harmful Was: XML-SW, a thought experiment

From: Eric van der Vlist <vdv@dyomedea.com>
Date: Sat, 23 Feb 2002 10:24:04 +0100
Message-ID: <3C775FB4.4090200@dyomedea.com>
To: "'www-tag'" <www-tag@w3.org>
Eric van der Vlist wrote:

> Do we need out of band signals in addition to the in band signal (ie the tree 
> of elements and attributes)?

I have been thinking about killer apps for out of band signalling to try 
to answer to this question and, here are some proposals:

- Addition of PSVI information embedded in the instance documents [1].
- Meta data. A Dublin Core variant expressed as PIs would be
   immediatly usable everywhere (even in vocabularies having made no
   provision for any type of meta data).
- And even a variant of RDDL using PIs instead of XLink would have
   been cool and less verbose (RDLL elements are truly "Processing
   Instructions").

I am begining to wonder if out band signalling -using PIs or not- hasn't 
a big role to play for the Semantic Web :) !

Eric

[1] http://aspn.activestate.com/ASPN/Mail/Message/xml-dev/1042297--
See you in Seattle.
                                        http://knowledgetechnologies.net/
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Eric van der Vlist       http://xmlfr.org            http://dyomedea.com
http://xsltunit.org      http://4xt.org           http://examplotron.org
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Received on Saturday, 23 February 2002 04:24:11 GMT

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