RDF Sample, ICAO Airport Codes

Didier PH Martin martind at netfolder.com
Sat Jul 31 16:31:24 BST 1999

Hi James,

James said:
But under my scheme, what following "hname" is in http URL scheme syntax
with the assumption that you would use exactly the same thing after the
colon as you would if the scheme was http.



I agree that it isn't 100% guaranteed to be unique as someone else could
come along and define the semantics of what follows "hname" as meaning that
someone could legitimately use the above and not be owner of megginson.com
but I think that is almost impossible.

Didier says:
And the advantage is that hname is not identified to a resource access
protocol like http. when we use http, and because most of us using the web
to access resource do use http protocol when we read a resource, http is
associated already to a certain meaning. It implicitly carries the meaning
of doing a "GET" this resource. "hname" has the advantage of not being
tagged with such meaning, even if the rest of the url is the same. At least
we do not say that we'll use the http protocol to "GET" a resource. Simple
question of meaning and in this case, http carries some meaning. So, what
James is doing is that he just tell the reader that this url is not a
resource transport protocol but something else. This way, James do not do
semantic overload on a single term. Otherwise I would call everything in my
sight "car". Economical way to call everything (a single word) but I am not
so sure I could be understood.

So even if a urn is not necessarily used for name space reference, at least
if it do not refer to a url with a different meaning. In fact, I think we
should send this comments to W3C which by the way seems also to use http
protocol like someone using a single word to call everything. I am surprised
that nobody within WG made comments on this. the only rational thing I would
see about this is that sooner or later the intention is that a document will
be stored at the location referred by the http url. In this case, it makes a
lot of sense, otherwise, its like the guy using a single word "car" to name

Didier PH Martin
mailto:martind at netfolder.com

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