Re: REGISTRAR

timbl (Tim Berners-Lee)

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Date: Tue, 13 Jul 93 15:03:36 MET DST
From: timbl (Tim Berners-Lee)
Message-id: <9307131303.AA25630@ nxoc01.cern.ch >
To: dsr@hplb.hpl.hp.com, raisch@ora.com
Subject: Re: REGISTRAR
Cc: www-talk@nxoc01.cern.ch
Status: RO

Dave asks how one can specify particular pererences for
retrieval of an object in the link.  I don't think
this is information for the link.  In HTTP it is transferred
atthe time of retrieval from the server, the HTTP headers
containing information for stating prefernces for variants
(language, representation, encoding).

I thinkwork is needed on parameters to hte representations
like 
  image/gif
is all very well, but 
image/gif  height=200 width=400 colours=8
provides better information for the server, allowing it to
select or generate an image more accurately, and save bandwidth.