[DDI-users] DDI-users Digest, Vol 30, Issue 5

Mon Jul 23 10:12:27 EDT 2007

Mark,

When we work with V 1/2 we typically consult the tree structure for the
tags' presence, hierarchy, sequence, etc.
Whenever <text> and <concept> were added, whoever did it forgot to add
them to the tree structure (that would have been a necessary step - to
update the tree structure!). 
So we never knew they existed, and that's why we may have asked you to
remove them from the schema (the tree structure derived from the schema
did not match the tree structure derived from the DTD, and we assumed
the latter was correct). 
That was a while ago and I do not remember how we talked about this,
etc. Actually, I did not even remember that you had removed them from
the schema until I saw the message below.
Anyway, in the meantime I have checked, these are valid fields, as
stated in the DTD. So if you would like to reinstate them in the schema,
that would be nice. 
We are definitely NOT changing the DTD right now. Taking them out would
be an invalidating change, and of course there are other reasons (V 2.1
needs to remain absolutely stable while we're messing about with V 3.0)

Thanks,
Sanda.

Sanda Ionescu
ICPSR
University of Michigan
P.O. Box 1248
Ann Arbor, MI 48106

Phone, Fax: 734-615-7890 
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Today's Topics:

   1. Re: DDI v2-1: elements TXT and CONCEPT (Mark Diggory)

----------------------------------------------------------------------

Message: 1
Date: Sat, 21 Jul 2007 10:46:04 -0400
From: Mark Diggory <mdiggory at MIT.EDU>
Subject: Re: [DDI-users] DDI v2-1: elements TXT and CONCEPT
To: Data Documentation Initiative Users Group
	<ddi-users at icpsr.umich.edu>
Message-ID: <4EFA97EB-F8CF-413D-B19E-C8FE56D68B45 at mit.edu>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed

This appears to be a change that Matt Richardson and Sandra Ionescu has
put into the schema (see revision 1.4 in the list.)

http://ddi-alliance.cvs.sourceforge.net/ddi-alliance/ddi/w3c/
Version2-1.xsd?view=log

Sanda and Matt, can you comment on this change in November 2005 which
appears to deviate from the DTD?  I have a email archive that from that
time period I've reviewed and not been able to determine if there was
discussion concerning it?  Was there consideration if this is an error
in the DTD technical Implementation of the Specification as well? Or was
this even an appropriate change to have made in the w3c Schema
implementation?

-Mark

On Jul 12, 2007, at 2:49 PM, Wendy Thomas wrote:

> For DDI 2.1 the cannonical version is the DTD. I will ask the guys 
> handling this on the SRG to look into the problem and get back to the 
> list. (they may be doing it already :)
>
> Wendy
>
>
> On Thu, 12 Jul 2007, Fredy Kuhn wrote:
>
>> Hi all,
>>
>> I have a problem with the usage of sub element pairs 'txt' - 
>> 'concept' in DDI 2-1:
>>
>> The web pages 'Tree Structure' (*) and 'Whole Library' (**) display 
>> in DDI section 2 several of these pairs; example:
>> <dataKind> 2.2.3.10.
>>
>> In schema 2-1, and according to Sourceforge history (***), these 
>> sub-elements were removed from study description elements, see 
>> revision 1.4:
>>
>> --- QUOTE ---
>>
>> The <txt> - <concept> pair illegally appears under <nation>, 
>> <geogCover>, <geogUnit>, <anlyUnit>, <universe>, <dataKind>, 
>> <timeMeth>, <sampProc>, <collMode>, <resInstru> in Study Desc., also 
>> under <universe> 4.1.5 ... ...
>>
>> !!!----- <txt> and <concept> are VALID FIELDS under <varGrp>
>> (4.1.2 and 4.1.3) and nCubeGrp (4.2.2 and 4.2.3) --------- !!!
>>
>> --- QUOTE END ---
>>
>> Thus, the TXT and CONCEPT tags are valid in DTD2.1, but not in 
>> schema2-1. Should we use them or not?
>>
>> Further more, by removing the sub-element <concept> from e.g.  
>> <datakind> or <sampProc>, how to markup the usage of a controlled 
>> vocabulary?
>>
>>
>> (*) Tree structure:
>> http://www.ddialliance.org/DDI/dtd/version2-1-tree.html
>>
>> (**) Whole library:
>> http://www.ddialliance.org/DDI/dtd/version2-1-all.html
>>
>> (***) Sourceforge DTD v2.1 (see revision 1.4):
>> http://ddi-alliance.cvs.sourceforge.net/ddi-alliance/ddi/w3c/
>> Version2-1.xsd?view=log
>>
>>
>> BTW: Looking at DDI-3, I'm asking me how elements for which we use a 
>> controlled vocabulary (CV), e.g. 'data collection mode', should be 
>> marked up, i.e. how to specify the CV. Could one of the 'experts' 
>> give me a hint? I'm not yet too familiar with DDI-3.
>>
>> Best regards
>> freddy
>>
>>
>> _______________________________________________
>> DDI-users mailing list
>> DDI-users at icpsr.umich.edu
>> http://www.icpsr.umich.edu/mailman/listinfo/ddi-users
>>
>
> 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
> University of Minnesota
> 50 Willey Hall
> 225 19th Avenue South
> Minneapolis, MN 55455
> _______________________________________________
> DDI-users mailing list
> DDI-users at icpsr.umich.edu
> http://www.icpsr.umich.edu/mailman/listinfo/ddi-users

~~~~~~~~~~~~~
Mark R. Diggory - DSpace Systems Manager MIT Libraries, Systems and
Technology Services Massachusetts Institute of Technology
Office: E25-131
Phone: (617) 253-1096

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