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   Re: [xml-dev] many-to-many

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On Sun, Jan 26, 2003 at 08:41:25AM +0000, Miles Sabin wrote:
> I disagree. Abstract Resources aren't needed for HTTP caching. Nothing 
> would break if you thought of it as operating in terms of entities with 
> URIs telling a cache where to go to get a fresh entity when the current 
> one is stale.

Try to explain the role of the HTTP Vary header, without saying
"resource", "thing", "that which a URI identifies", or the equivalent.

You can't, because in order to discuss the relationship between
representations, you need more than the URI; you need the concept of the
thing that is identified by that URI.

Mark Baker.   Ottawa, Ontario, CANADA.        http://www.markbaker.ca
Web architecture consulting, technical reports, evaluation & analysis


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