[DDI-SRG] URN syntax change from 3.0 to 3.1

[Wendy Thomas]

Achim,

There will also be a revision to Parts I and II of DDI 3.0. Primarily to 
add material but also to deal with this problem.

Wendy



On Mon, 11 May 2009, Joachim Wackerow wrote:

> When I talked with Wolfgang about this issue, we realized this results
> in a usage problem.
>
> DDI 3.0 URN's violate the URN syntax specification. But when one tries
> to use DDI 3.0 with valid URN's (i.e. round brackets instead of square
> brackets) the instance would be not valid according to the documentation
> (overview).
>
> possible solutions
> - When using DDI 3.0, DDI 3.1 URN syntax should be used. The instance
> would validate against the 3.0 schemas, because the syntax of the URN's
> is not checked anyway.
> - DDI 3.0 should not be used any more.
>
> The chosen solution should be documented near the download link of DDI 3.0.
>
> Achim
>
> -- 
> GESIS - Leibniz Institute for the Social Sciences
> Postal address: P.O. Box 122155, 68072 Mannheim, Germany
> Visiting address: B2 1, 68159 Mannheim, Germany
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> E-mail: joachim.wackerow at gesis.org
> www.gesis.org/en/institute/
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Wendy L. Thomas                          Phone: +1 612.624.4389
Data Access Core Director		 Fax:   +1 612.626.8375
Minnesota Population Center              Email: wlt at pop.umn.edu
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