[DDI-SRG] [DDI 3.0 0000125]: Comparative: richer description, better machine-actionability, consistent structure

[Wendy Thomas]

I will try to do that today...but I'm a bit swamped at work.

wlt

On Wed, 6 Feb 2008, Joachim Wackerow wrote:

> Wendy,
>
> That was the reason I was asking.
> I still don't really understand the advantage of using CodeMap with a
> direct reference to a control construct in contrast to the suggested
> solution. Perhaps I'm thinking to much in variables as a whole construct.
>
> Please provide an XML example, so I can see en detail what you are
> intending to do with that.
>
> Achim
> ...
>> Additionally it seems to make sense to provide mechanisms to use or to
>> refer to DerivationInstruction or ControlConstruct. But actually it is not
>> really necessary, when using derived variables/codes for harmonization
>> purposes. Then the DerivationInstruction is part of the definition of the
>> harmonized variable. Using this approach VariableMap and CodeMap can also
>> use the GenericMapType.
>>
>> Has the current approach in CodeMap in using a reference to a
>> ControlConstruct any advantage in contrast to the suggested approach?
> ...
>
>> ----------------------------------------------------------------------
>>  wthomas - 02-05-08 12:03
>> ----------------------------------------------------------------------
>> CodeMapType allowing the use of the contstructs was provided for a formal
>> means of mapping coding transformations in doing harmonizations. It allows
>> for a formal means of conveying this information within the known DDI
>> structure. You're throwing a wrench into my translation tables for IPUMS
>
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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
University of Minnesota
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225 19th Avenue South
Minneapolis, MN 55455