Working groups proposal

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Wendy Thomas

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May 5, 2026, 6:09:34 PMMay 5
to Data Documentation Initiative Users Group
DDI Users,

The DDI Tecnical Committee is in the process of proposing 2 new working groups for the continued development and support of DDI-Codebook and DDI-Lifecycle. 

As new versions of each of these products are being released, the Technical Committee is proposing focused working groups for each of these products. This work would involve future product development and development of supportive documents and best practices for these products. Moving these products into separate workinIg groups allow them to have the focused attention they deserve and frees the Technical Committee to focus on the technical infrastructure supporting DDI work and the coordination and publication of DDI products and technical papers.

If you would be interested in being part of either of these groups, please contact me at w...@umn.edu or ddit...@gmail.com

I look forward to hearing from you,

Wendy Thomas
Chair, DDI Technical Committee

Wendy L. Thomas                            
ISRDI [retired]

Vaillancourt, Chantal (she, her | elle, la) (StatCan)

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Jun 26, 2026, 8:34:51 AM (yesterday) Jun 26
to Data Documentation Initiative Users Group

Hello,

 

We are wondering how documentation of rebased data has been handled or should be handled in DDI? For example, Labour Force Surveys data are typically rebased with new population data on a periodic basis. This can be described at the Group level. Does anyone create a new StudyUnit to provide more context to the data files that are rebased? Or is this simply identified through the names of the PhysicalInstance (e.g., adding “rebased…” to the title or subtitle)?

 

Thank you for weighing in,

Chantal

 

Chantal Vaillancourt

(she | elle)

 

Section manager – Statistical Registers and Metadata Division, Strategic Data Management, Methods and Analysis

Statistics Canada / Government of Canada

chantal.va...@statcan.gc.ca

 

Gestionnaire de section — Division des registres statistiques et métadonnées, Gestion stratégique des données, des Méthodes et de l'Analyse

Statistique Canada / Gouvernement du Canada

chantal.va...@statcan.gc.ca

 

.

Wendy Thomas

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Jun 26, 2026, 9:15:58 AM (yesterday) Jun 26
to Vaillancourt, Chantal (she, her | elle, la) (StatCan), Data Documentation Initiative Users Group
Chantal,

I haven't looked specifically at where it should be documented but it should clearly be more than a naming difference. For one thing terminology (rebased) may be different in different locations, organization types, or content areas. 

This is a processing change to the data so I would look at this structural content first. The general study description should refer to this description.

Not having this information clearly causes problems for the user. This last statement is the voice of experience from the early years of data dissemination on CD-ROM from the US BEA. 

I'll look at this further.

Wendy



Wendy L. Thomas                            
ISRDI [retired]
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