It is also worth mentioning Gleaning Resource Descriptions
from Dialects of Languages (GRDDL):
http://www.w3.org/TR/grddl/
"... a mechanism for Gleaning Resource Descriptions from
Dialects of Languages; that is, for getting RDF data out of
XML and XHTML documents using explicitly associated
transformation algorithms, typically represented in XSLT."
The News Architecture Working Party of the International Press
Telecommunications Council (IPTC) is investigating the use of
XHTML2 for expressing DC and other metadata. We are looking
at GRDDL to help us with this, as we want to add lots of extra
information to each statement. A fantasy example is:
<dc:subject
val="scheme:code" <!-- Value -->
type="scheme:code" <!-- Concept type -->
qual="scheme:code" <!-- Qualifies -->
parent="scheme:code" <!-- A parent -->
why="scheme:code" <!-- Why present -->
equiv="scheme:code" <!-- Equivalent to -->
assign="scheme:code" <!-- Assignee -->
conf="50" <!-- Confidence (%) -->
rel="50" <!-- Relevance (%) -->
when="2005-05-11T12:34:56" <!-- Date and time -->
xml:lang="en" <!-- Refers to the Description -->
>Hello world</foo> <!-- Description -->
You will see that we are thinking of placing the descriptive text in
the element content, not in an attribute such as 'title', as placing
text in attributes works against Internationali[s|z]ation.
For further information, see:
http://lists.w3.org/Archives/Public/semantic-web/2005Jun/0102.html
and the News Metadata Framework Requirements:
http://iptc.org/pdl.php?fn=DRAFT-NAR_1.0-spec-NMDF-BusReq_34.pdf
Misha
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