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RE: Potential new issue: PSVI considered harmful

From: Dare Obasanjo <dareo@microsoft.com>
Date: Tue, 18 Jun 2002 05:06:52 -0700
Message-ID: <8BD7226E07DDFF49AF5EF4030ACE0B7E0696F4BE@red-msg-06.redmond.corp.microsoft.com>
To: "Rick Jelliffe" <ricko@topologi.com>, <www-tag@w3.org>

What you are proposing is an alternative mechanism not a renamed PSVI.
The PSVI is an intrinsic aspect of the W3C XML Schema recommendation. A
TAI as has been discussed on this thread could be thought of as a
generic typed XML data model similar to that of the XQuery/XPath 2.0
data model. 

Any philosophy that can be put into a nutshell belongs there.

This posting is provided "AS IS" with no warranties, and confers no

> -----Original Message-----
> From: Rick Jelliffe [mailto:ricko@topologi.com] 
> Sent: Tuesday, June 18, 2002 2:03 AM
> To: www-tag@w3.org
> Subject: RE: Potential new issue: PSVI considered harmful
> I agree with Tim Bray (and perhaps Noah Mendelson, in part) 
> that the PSVI should be renamed.  
> * First because it may not be PSV, as he says.
> * Second because it does not have a relationship-preserving 
> re-serialization to XML (except of course by stripping out 
> the augmentations and requiring validation again) and therefore
> is non-XML. PSVI does not draw out this discontinuity enough.   
> * Third because "Schema" is a codeword for W3C XML Schemas, but other 
> schema languages could be used.
> I think "Type-augmented Infoset" could be improved, though, 
> because it is not just that there is additional information 
> added to some notional XML information set, 
> it is that there are non-XML information items added.  The 
> XML Information Set 
> spec generally uses "Information Item" to mean an instance 
> rather than a type, so "augmented" is not very satisfactory.  
> I suggest just "Typed InfoSet."
> Cheers
> Rick Jelliffe
Received on Tuesday, 18 June 2002 08:07:26 UTC

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