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On reading material for f2f - Web Linking

From: Tim Berners-Lee <timbl@w3.org>
Date: Sat, 5 Dec 2009 13:07:22 -0500
Message-Id: <4932F92E-F109-402A-A769-FC29747A16D1@w3.org>
To: TAG List <www-tag@w3.org>


             Web Linking

- The HTTP link header spec
says "Likewise,   the relative ordering of links in any particular  
serialisation, or
    between serialisations (e.g., the Link header and in-content links)
    is not specified or significant in this specification; applications
    that wish to consider ordering significant MAY do so. "

That is heading for disaster. If an application (what is an  
application?) treats the ordering as significant, then any  
intermediary or translator must too, which messes up the whole chain.   
Just say, the ordering is NOT significant.

- "The "rev" parameter has also been used for this
  by some formats, and is included here for
    compatibility with those uses,   defined by this specification."  
Alas.  It is a design feature, which allows    {A chapter B} to be  
stated in A or B.  And why define it in the syntax and not give its  
perfectly well defined semantics?

- In relation-type,  How to distinguish a relative URI (parsed  
relative to the requested resource URI) and a token (parsed relative  
to http://www.iana.org/assignments/relation/)?

Hmmmm "Note that extension relation types are REQUIRED to be absolute  
URIs"   Oopps.. why? This was a mistake in the Namespaecs spec, as  
there are times (like when a CSV file is converted into RDF) that the  
namespaces are local.   Unwise to block it just because we can't think  
of a use now.  Unless it is to solve the ambiguity. In which case more  
consitent say parse it w r t http://www.iana.org/assignments/relation/.

- title*=UTF-8'de'letztes%20Kapitel"    Really hanging double quote on  
the end?

- Add a section of 6.2 to say that IANA will maintain an RDF document  
at the address defining each registered name as an RDF Property, with  
at least rdfs:label in at least one language and rdfs:comment and a  
reference to the specification in which the relationship is defined.   
And that client software must not look up this file more than once in  
its installed life.
Received on Saturday, 5 December 2009 20:39:25 UTC

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