Brian Kelly writes:
> Thanks for this message.
> I must confess to a certain confusion over how W3C sees the metadata
> architecture developing after the W3C sessions at Rutherford Labs in
> January and WWW6 in April.
>
> 1 - Metadata may be embedded in HTML using the META tag - such as the
> SCHEME proposal for DC.
> 2 - The use of PICS for storing metadata is being discussed by the PICS
> WG [1].
> 3 - Digital signatures are a form of metadata. The use of PICS for
> storing digital signatures (and assertions) is being discussed by
> the DSig WG [2].
> 4 - Tranparent Content Negotiation (TCN) uses variant lists to describe
> alternate formats for resources [3]
> 5 - Web Collections [4] describe relationships between resources.
> 6 - XML [5] has been proposed as a mechanism for use with PICS, Web
> Collections (as well as Maths, CDF, etc).
And don't forget WebDAV and SiteMapping, which also contain significant
metadata components.
We see a fair amount of churning going on; not surprising considering
the complexity of the problems, the number of stakeholders, and the
urgency of achieving solutions.
Actually, I'm quite impressed that so much communication is taking
place. It is perhaps the hardest part of this job. The W3C deserves
a lot of credit for staying on top of all this.
stu
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