On May 10, 2006, at 12:11 PM, Joe Gregorio wrote:


On 5/10/06, John Panzer <[EMAIL PROTECTED]> wrote:
Does this imply that a service cannot also do content negotiation if no preference is specified in the URI (if a "base URI" alone is used)? I don't
know.

There is a separate question lurking here: Whether or not we mandate multiple URIs, or allow them, or ban content negotiation... is there one
resource hiding behind the URI(s) or two?

I responded to Bill on this earlier in this thread:
(http://www.imc.org/atom-protocol/mail-archive/msg05092.html)

"Does it matter? There are two URIs that have different
representations, whether or not those are the 'same' resource
is a server implementation detail and as far as I can tell
has no impact on the interop of the protocol."

In the long run, yes, as features get added in standards or in implementations, it really matters. - Do the two URIs have the same behavior in terms of access control, and show the same ACL
 - Would locking one cause the other to be locked
- Do they have the same metadata, e.g. creation date and last- modified date, owner, etc.
 - Do they both get deleted together

(Reading Tim's very different answer, he's right about the general case talking to any old server, but he might be wrong if a specific standard says "There is one resource behind these two URIs" and you know you're talking to a server that supports that specific standard.)

Lisa

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