I said:
> I'd be slightly reluctant to create a new version of the
> profile - i.e.
> issuing http://dublincore.org/documents/2009/06/nn/dc-html/
> and asking people to refer to that profile URI in their
> X/HTML documents - in order to do this, because it isn't
> changing any of the "semantics", rather just clarifying a
> point of the existing spec.
>
> What I suggest we might do is to amend the content of the
> existing document, keeping the same URI, with an "erratum" to
> the current doc without creating a new version, to insert an
> additional pair of examples (between the current examples 5/6
> & 7/8), illustrating that the prefix "DC" might be mapped to
> an example.org "namespace URI" and maybe also that a prefix
> "XYZ" might be mapped to a DCMI-owned namespace URI.
OK, see draft
http://www.incognitum.net/petej/projects/dc/documents/2008/08/04/dc-html
/
As suggested above, I've added two pairs of examples (currently numbered
6a/6b and 6c/6d)
http://www.incognitum.net/petej/projects/dc/documents/2008/08/04/dc-html
/ex06a/
http://www.incognitum.net/petej/projects/dc/documents/2008/08/04/dc-html
/ex06b/
http://www.incognitum.net/petej/projects/dc/documents/2008/08/04/dc-html
/ex06c/
http://www.incognitum.net/petej/projects/dc/documents/2008/08/04/dc-html
/ex06d/
to emphasise the point that any prefix can be mapped to any URI. I also
amended example 9/10 to emphasise that there is no "built-in" mapping
for the "DC" prefix.
(The hyperlinks to the examples don't work on that copy because the path
from root is different, but they should work OK on dublincore.org)
[snip]
> I think I had some doubts about whether there might be a
> problem with "recursion" - the profile doc itself referring
> to the profile it describes - but I'll run a test on a copy
> to see what happens. If it works OK, we'll add the additional
> profile URI. i.e. In the document
>
> http://dublincore.org/documents/2008/08/04/dc-html/
>
> change
>
> <head profile="http://www.w3.org/2003/g/data-view">
>
> to
>
> <head profile="http://www.w3.org/2003/g/data-view
> http://dublincore.org/documents/2008/08/04/dc-html/">
>
> (assuming, as above, that we do this as an "erratum" to the
> current document).
I've also made that change, i.e. this doc
http://www.incognitum.net/petej/projects/dc/documents/2008/08/04/dc-html
/
has
<head profile="http://www.w3.org/2003/g/data-view
http://www.incognitum.net/petej/projects/dc/documents/2008/08/04/dc-html
/">
i.e. the second URI is a reference to itself
AFAICT (unless I've done something silly, which is possible) a GRDDL
processor doesn't apply the profile transform for the second profile.
See e.g.
http://librdf.org/parse?language=grddl&uri=http%3A%2F%2Fwww.incognitum.n
et%2Fpetej%2Fprojects%2Fdc%2Fdocuments%2F2008%2F08%2F04%2Fdc-html%2F&con
tent=&Run+Parser=Run+Parser&.cgifields=language
and
http://www.w3.org/2007/08/grddl/?docAddr=http%3A%2F%2Fwww.incognitum.net
%2Fpetej%2Fprojects%2Fdc%2Fdocuments%2F2008%2F08%2F04%2Fdc-html%2F&outpu
t=rdfxml
And I _think_ the reason for this is to avoid a recursion problem,
because using another copy
http://www.incognitum.net/petej/projects/dc/documents/2008/08/04/dc-html
-d/
in which that second profile URI is
http://dublincore.org/documents/2008/08/04/dc-html/ , then both
transforms are applied
http://librdf.org/parse?language=grddl&uri=http%3A%2F%2Fwww.incognitum.n
et%2Fpetej%2Fprojects%2Fdc%2Fdocuments%2F2008%2F08%2F04%2Fdc-html-d%2F&c
ontent=&Run+Parser=Run+Parser&.cgifields=language
and
http://www.w3.org/2007/08/grddl/?docAddr=http%3A%2F%2Fwww.incognitum.net
%2Fpetej%2Fprojects%2Fdc%2Fdocuments%2F2008%2F08%2F04%2Fdc-html-d%2F&out
put=rdfxml
Anyway, I think it's still The Right Thing To Do to include that second
profile URI as it still indicates the usage being made in the link/meta
elements.
Tom, are these changes within the scope of what we can make to the
current recommendation as "errata" please?
Pete
---
Pete Johnston
Technical Researcher, Eduserv
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+44 (0)1225 474323
http://www.eduserv.org.uk/research/people/petejohnston/
http://efoundations.typepad.com/
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