[DDI-SRG] Classification Banks and rcode value epresentation

[Wendy Thomas]

Pascal,

I can understand the need to state the numeric of text nature of the code 
values, but it should probably be optional and "recommended". In many 
cases it makes no difference and some people actually treat ordinal array 
values as numeric and closer to interval in nature. File the bug and 
supporting arguments. I am assuming this is a 3.1 bug not for 3.1 
publication version. My other question is do you need a full value 
representation? Text with length and regular expression constraints, or 
Numeric with range etc. ValueRepresentation includes the following 
substitutions: Text, DateTime, Numeric, ExternalCategoryRepresentation, 
and CodeRepresentation. Do you really want to allow all of that? Are you 
more concerned with a simple character/numeric choice? What about a 
r:RecommendedDataType (type="CodeValueType")??

Wendy


On Sat, 11 Jul 2009, Pascal Heus wrote:

> All:
> been working with a student on a small UI to manage classifications. One
> issue that we came accross is that we can't define a code list value
> representation, this is only defined  at the variable level. This means
> I can't say this code should be numeric or text. This is an issue for
> the publication of standard classification or the management of banks as
> we can't essentially restrict the data type of a code list. I would
> suggest adding in CodeScheme a valueRepresentation that excludes the
> codeRepresentation choice (thought could it be useful?). This would also
> allow for consistency checks between a variable and it's code list (in
> the current version, I could assign a numeric variable to a text code list).
> Thoughts before I file a bug?
> *P
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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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