[DAS2] starting the validation work

[Helt,Gregg]

I think we should definitely be consistent in the spec in using "URI",
not "URN".
	
	gregg

-----Original Message-----
From: das2-bounces at portal.open-bio.org
[mailto:das2-bounces at portal.open-bio.org] On Behalf Of Andrew Dalke
Sent: Tuesday, March 15, 2005 2:45 PM
To: das2 at portal.open-bio.org
Subject: [DAS2] starting the validation work


Second, in reading through things it looks like the
general decision in the XML community is to use the
phrase "URI" instead of "URN".  Eg, see the XML schema
document at http://www.w3.org/TR/xmlschema-2/#anyURI
where it uses URI and not URN.  Indeed RFC 2396 says

http://www.ietf.org/rfc/rfc2396.txt
    A URI can be further classified as a locator, a name, or both.  The
    term "Uniform Resource Locator" (URL) refers to the subset of URI
    that identify resources via a representation of their primary access
    mechanism (e.g., their network "location"), rather than identifying
    the resource by name or by some other attribute(s) of that resource.
    The term "Uniform Resource Name" (URN) refers to the subset of URI
    that are required to remain globally unique and persistent even when
    the resource ceases to exist or becomes unavailable.

This is different than what we use in the DAS2 spec,
which says things like

   The id attribute is a  URN (typically in the form of a relative URL)

Shall I go through and change the "URN"s to "URI"s in the docs?


					Andrew
					dalke at dalkescientific.com

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