Hi Stuart, On Mon, Oct 18, 2004 at 10:07:24AM +0100, Stuart Williams wrote: > >Consider that if I'm provided two URIs, one which identifies "an XML > >representation of my medical record at time T" (where T is fixed) and > >the other which identifies "an XML representation of my current medical > >record", then if I invoke GET on each at time T, I get two equivalent > >representations back. > > > >I suggest that what makes those two resources different is an "essential > >characteristic", and because it isn't reflected in the messages, > > > > Small point... but that would depend on whether you regarded the request > URI (or URI returned in header fields) part of any of the messages > exchanged. I don't believe so. The response messages would certainly be different if the URIs were included, but not different in a way which licenses the recipient to determine whether the essential characteristic I'm describing is present or not. Mark. -- Mark Baker. Ottawa, Ontario, CANADA. http://www.markbaker.caReceived on Monday, 18 October 2004 13:41:07 GMT
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