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RE: Submission request: the PSVI needs open exposure

From: Paul Cotton <pcotton@microsoft.com>
Date: Wed, 13 Feb 2002 13:31:46 -0500
Message-ID: <E7AC4500EAB7A442ABA7521D18814397028D141A@tor-msg-01.northamerica.corp.microsoft.com>
To: "Eric van der Vlist" <vdv@dyomedea.com>
Cc: <www-tag@w3.org>, <cmsmcq@acm.org>, <plh@w3.org>
> I think therefore that it is very necessary to define both an API to
> expose the PSVI and a simple XML serialization format wich would allow
> to work on the PSVI with the current toolbox.

Have you brought up this issue with the XML Schema WG and/or DOM WG
which are responsible for the PSVI technical specification and the DOM
API, respectively?  If not then why are you bringing this to the TAG
first?

If you have brought it up with the responsible WGs then I think it is
appropriate that you provide the TAG with pointers to the issue(s), its
discussion and resolution so that the TAG does not have to do this
research itself.

Please note that the XML Schema public home page Resources section [1]
includes a reference to work on a PSVI serialization format [2].

/paulc

[1] http://www.w3.org/XML/Schema#resources 
[2] http://www.w3.org/2001/05/serialized-infoset-schema.html 

Paul Cotton, Microsoft Canada 
17 Eleanor Drive, Nepean, Ontario K2E 6A3 
Tel: (613) 225-5445 Fax: (425) 936-7329 
<mailto:pcotton@microsoft.com> 


> -----Original Message-----
> From: Eric van der Vlist [mailto:vdv@dyomedea.com]
> Sent: Wednesday, February 13, 2002 5:00 AM
> To: www-tag@w3.org
> Subject: Submission request: the PSVI needs open exposure
> 
> Although the PSVI (Post Schema Validation Infoset) is documented in
the
> W3C XML Schema recommendation (parts 1 and 2) and implicitely used in
> new specifications in progress such as XPath and XSLT 2.0 and XQuery
> 1.0, no API nor interchange format has been defined to expose the PSVI
> and I am not aware of any public and official trace of such a work.
> 
> This aspect seems to be out of the scope of DOM Level 3 which
"Abstract
> Schemas" Working Draft is focussing on schema-guided document editing
> and does not even mention the notion of PSVI, out of the scope of W3C
> XML Schema 1.0 which describes W3C XML Schema as an abstract language
> formalized in XML independently of any implementation and out of the
> scope of XPath/XSLT/XQuery which describes its data model
independently
> of any implementation.
> 
> One of the strength of the XML architecture is that because of open
and
> standard APIs such as the DOM (or SAX), one may plug any parser with
any
> application (and write custom applications and parsers to extend the
> scope of XML processing out of the range of documents serialized as
XML).
> 
> With the lack of definition of APIs and|or serialization formats for
the
> PSVI, it would not be the case any longer for W3C XML Schema dependent
> applications such as XPath/XSLT 2.0/XQuery 1.0 and would lead to
coming
> back to monolithical applications.
> 
> I think therefore that it is very necessary to define both an API to
> expose the PSVI and a simple XML serialization format wich would allow
> to work on the PSVI with the current toolbox.
> 
> Such work may be underway, but I have not seen any public official
> document mentioning it (such as for instance a Working Draft of
> Requirements) and not being a W3C member, I can't even look at the
> charter of the W3C XML Schema WG which seems considered as secrete!
> 
> Thanks
> 
> Eric
> --
>
------------------------------------------------------------------------
> Eric van der Vlist       http://xmlfr.org
http://dyomedea.com
> http://xsltunit.org      http://4xt.org
http://examplotron.org
>
------------------------------------------------------------------------
Received on Wednesday, 13 February 2002 13:32:20 GMT

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