Overloaded URIs must GO!

Paul Prescod paul at prescod.net
Fri May 28 23:26:42 BST 1999


David Megginson wrote:
> 
>    Yes, but only by the IETF, unless the IETF starts assigning parts
>    of its URN namespace to other users.  XSL, for example, still
>    cannot use a URN for a namespace today.  As Paul mentioned later,
>    we could use an x-* URN namespace, but that's actually less safe
>    than a URL (it's not even guaranteed unique).

It's a question of balancing risk, standards conformance, etc.

Using an HTTP URL is wrong, unintuitive and will have bad practical
effects, even if it is safe from a uniqueness perspective.

>From a pragmatic point of view, using an experimental namespace is
uniqueness-safe even if it is not save from a theoretical point of view.

If we, today, establish the x-mldev namespace then the chances of anyone
accidently intruding on it are incredibly small. So SAX would use:

urn:x-mldev://www.sax.org/features/blahblahblah

(if you have registered the SAX domain)

Besides, if we submit an internet draft for an hname: namespace then
nobody is going to go off and invent a clashing one by accident. It's a
question of us taking a little bit of extra effort to do the right thing.
(I'm holding my breath here lest I get stuck with the job...If someone did
it would people use it?)

-- 
 Paul Prescod  - ISOGEN Consulting Engineer speaking for only himself
 http://itrc.uwaterloo.ca/~papresco

Alabama's constitution is 100 years old, 300 pages long and has more than
600 amendments. Highlights include "Amendment 393: Amendment of Amendment
No.  351", "Validation of Laws Regulating Court Costs in Randolph County",
"Miscegenation laws", "Bingo Games in Russell County", "Suppression
of dueling".  - http://www.legislature.state.al.us/ALISHome.html

xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev at ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1
To (un)subscribe, mailto:majordomo at ic.ac.uk the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo at ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa at ic.ac.uk)





More information about the Xml-dev mailing list