[DDI-SRG] [disco] issues on missing values for numeric response domain and on conceptual variable

[Wendy Thomas]

I think that it is not as important to have that step in the hierarchy in
Disco. The purpose of Disco, at least initially, was to facilitate
discovery of data and related metadata in an RDF environment. As one can
locate and link a concept to an existing variable that is what seems to be
important. The value of a Represented Variable in the discovery process is
the ability to track variable reuse across iterations of a study or a
common variable, such as the U.S. OMB definition of the Race variable
across studies. Unless there is some discovery advantage to exposing a
Conceptual Variable I don't think its expression in Disco if vital.

Wendy

On Thu, Mar 14, 2019 at 7:29 AM Wackerow, Joachim <
Joachim.Wackerow at gesis.org> wrote:

> Benjamin Zapilko and I are currently reviewing the open issues of Disco.
> The goal is to resolve the issues and to prepare Disco finally for
> publication.
>
>
>
> Now I have questions on two issues:
>
>
>
> --
>
> There is an issue on how to describe missing values for a numeric response
> domain.
>
> Details and my comment see at
> https://github.com/linked-statistics/disco-spec/issues/130.
>
>
>
> My question:
>
> Is there really missing something in Disco? I don’t have the impression.
> But maybe I misunderstood something.
>
>
>
> --
>
> The other issue is that the conceptual variable of DDI 3.2 does not exist
> in Disco.
>
> The hierarchy is only Variable, RepresentedVariable, skos:Concept.
>
> Details and my comment see at
> https://github.com/linked-statistics/disco-spec/issues/226.
>
>
>
> The whole approach of Disco is to focus on a simple subset of DDI Codebook
> and DDI Lifecycle for Discovery purposes. It is not a 1:1 representation.
>
>
>
> My question:
>
> Is it really important to be able to search for the ConceptualVariable in
> addition to Variable, RepresentedVariable, and Concept.
>
> Is this addition really worth it? This might result in some work for Disco.
>
> Any thoughts would be helpful.
>
>
>
> Thanks
>
> Achim
>
>
>
>
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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 umn.edu
University of Minnesota
50 Willey Hall
225 19th Avenue South
Minneapolis, MN 55455
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