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

[Joachim Wackerow]

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