Re: URI indigestion
"Bullard, Claude L (Len)" scripsit: > So if the Public ID is used > in RDF for the Semantic Web, where does uniqueness > get conferred? Public IDs that begin "IDN domain-name//" are as unique as domains (which is to say, only during a given period of time). This is part of ISO 9070 on Formal Public Identifiers. > Further, there is the issue that URIs designate > representations of resources and that these can > vary over time/space/authorial_intent, etc,. and > that this conflicts with the RDF requirement for > insisting that the URI uniquely identifies one > thing. I hold that URIs designate resources. The GET method returns some representation of the resource, if one is available. This is equally true of an URN as of an URL. > 1. What is the one thing that it identifies > for URIs? Some resources don't have representations, the "thing without a rep" trick notwithstanding. > 2. Are these resources (can only be one) or > representations (can vary)? Resources. -- John Cowan jcowan@r... http://www.reutershealth.com "Mr. Lane, if you ever wish anything that I can do all you will have to do will be to send me a telegram asking and it will be done." "Mr. Hearst, if you ever get a telegram from me asking you to do anything you can put the telegram down as a forgery."
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