[DFDL-WG] Action 155: Validation on output

[Steve Hanson]

We closed this in the call this week. However my write up was missing an 
important word - 'augmented' - see below. Any issues with this let me 
know, otherwise I will update the minutes and re-post on grid forge.


155
Errata: Timing of validation on unparsing (All)
8/11. Next step is to talk to XML Schema WG.
15/11: Steve was a call with Sandy Gao on Fri 25th. 
22/11: Call on Nov 25th delayed until Dec 2nd
29/11: Call now delayed until Dec 9th. Steve has sent mail to Sandy
6/12: Call this Friday
13/12: Closed. Call held with Sandy Gao. XML does not have this problem to 
anywhere near the same extent, an XML document and its infoset should 
validate the same (a couple of minor exceptions are whitespace and 
namespace declarations). Decided that due to the inherent possibility of 
creating a DFDL schema that can unparse a stream that can not be reparsed, 
and for commonality with XML, that an errata should be taken on the spec 
to change the description of validation on unparse to be in terms of the 
augmented infoset. Noted that a user of an implementation always has the 
option to re-parse a stream to check that it will parse and validate.

Regards

Steve Hanson
Architect, Data Format Description Language (DFDL)
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh at uk.ibm.com
tel:+44-1962-815848





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