At 07:20 PM 3/5/2002 +0000, Pete Johnston wrote:
>Stu Weibel said:
>
> > A small group of people working on the next version of the
> > OAI Protocol for Metadata Harvesting (version 2.0) have been
> > investigating the possibility of partitioning the XML schema
> > that the protocol uses to encode simple DC metadata records
> > into two parts. The group includes Pete Johnston, Carl
> > Lagoze, Andy Powell and Herbert Van de Sompel.
>
>[snip]
>
> > The DCMI-specific XML schema is currently available at
> >
> http://www.ukoln.ac.uk/metadata/dcmi/dcxml/xmls/simpledc.xsd
>
>It's come to our attention that although XML Spy accepts this schema as
>valid, and validates instances against it as expected, both XSV
>(2002/01/11) and Xerces C++ 1.6.0 reject the schema. After pursuing this
>issue on xmlschema-dev, I think there _is_ a problem with this version.
>For details see my posting
>
>http://lists.w3.org/Archives/Public/xmlschema-dev/2002Mar/0012.html
>
>And the detailed response from Jeni Tennison
>
>http://lists.w3.org/Archives/Public/xmlschema-dev/2002Mar/0013.html
>
>I've put a new version which incorporates a correction along the lines
>of Jeni's last suggestion at
>
> http://www.ukoln.ac.uk/metadata/dcmi/dcxml/xmls/simpledc20020305.xsd
Pete,
My XML Schema is a bit rusty... but your use of xs:sequence I believe
defines an ordered sequence of sub-elements. While this does indeed
validate syntactically, is this constraint really what you want to
specify? This requires all applications to first use dc:title, dc:creator,
etc.
Is it your assertion that OAI is expected to comply with this restriction?
--
eric miller http://www.w3.org/people/em/
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