Re: [Simple] Liaison Statement from the Open Mobile Alliance

[Jari Urpalainen <jari.urpalainen at nokia.com>]

On Fri, 2009-10-02 at 20:12 +0200, ext Ben Campbell wrote:
> (as SIMPLE co-chair)
> 
> OMA sent a liaison statement to the SIMPLE working group. The  
> statement's overview reads as follows:
> 
> "This Liaison Statement reports XML validation problems in the XML  
> schemas that were introduced in RFC 4826 and asks for correction."
> 
> Please read the LS, and send your opinions to the SIMPLE list. A PDF   
> is available at https://datatracker.ietf.org/documents/LIAISON/file707.pdf
> 
> Thanks!
> 
> Ben.

I looked at the statement, and except the copy-paste bugs of IANA files
from rfc4826, there's a proposal to add a "schemaLocation" attribute to
rls-services schema. This attribute value provides a hint from the
author to a processor regarding the location of a schema document. It is
an optional value which may help the validation task. Typically however,
validators have some means to combine multiple schemas (e.g.
<http://validate.openlaboratory.net/> does also some magic with multiple
schemas), and as such it has also security implications (if tools e.g.
try to fetch some external schemas). So imo, in any sane practical
service, you'll disable these hints. So they _can_ exist in specs, but
they don't help practical work where you must most likely anyhow tweak
with these uris. (and fyi, my preference is to use the registered urn's
which don't much help practical work either) 

br, Jari