Summary of DDI 3 Use Case Workshop

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Summary of DDI 3 Use Case Workshop

• Schloss DagstuhlWadern, GermanyNovember 2-6,
  2009

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Objectives

• To discuss DDI 3 use cases
• To write papers based on them
• To move the DDI effort forward

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Paper 1

• Author Larry Hoyle, University of Kansas
• Title Extracting DDI 3 Metadata from
  Statistical Packages
• Discussion
• Created table of all statistical packages and
  their common elements with DDI 3
• Will be useful in sharing with StatTransfer,
  which now has an export to Triple-S
• Hope to get StatTransfer interested in DDI 3

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Paper 2

• Author Mari Kleemola, Finnish Data Archive
• Title Archive Perspective on DDI 3
• Discussion
• How should archives approach DDI 3?
• How should the ISSP participating countries mark
  up and structure their country-specific data in
  DDI 3?

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Paper 3

• Author Oliver Hopt, GESIS
• Title Managing Questionnaire in DDI 3 The QDDS
  Use Case
• Discussion
• First version of QDDS uses DDI 2
• DDI 3 can add a lot of functionality, especially
  in terms of versioning changes in questionnaires
• QDDS plans a move to DDI 3 very soon

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Paper 4

• Author Ornulf Risnes, Norwegian Social Science
  Data Archive
• Title The ESS Use Case
• Discussion
• ESS needs to develop data packages for country
  and wave files and harmonize them
• How can we best do this in DDI 3 and provide easy
  access to all types of files?

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Paper 5

• Author Sanda Ionescu, ICPSR
• Title Comparison in DDI 3
• Discussion
• How can we use DDI 3 to mark up files to prepare
  for and implement harmonization?
• Which specific elements should be used?
• Are there elements missing?

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Paper 6

• Author Uwe Jensen, GESIS
• Title Grouping Data Series in DDI 3
• Discussion
• How do we leverage the grouping structure for
  ongoing data series?
• Which pieces of information go where?
• What is the right structure of grouping for the
  large data series, using ISSP as an example?

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Paper 7

• Author Alerk Amin, University of Tilburg
• Title Questasy and DDI 3
• Discussion
• Questasy is a collection of Web surveys in
  multiple languages
• Questasy provides access to SPSS and Stata files
• System generates DDI 3

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Paper 8

• Author Bryan Fitzpatrick, consultant to
  Australian Bureau of Statistics
• Title Mapping SDMX to DDI 3
• Discussion
• Both complex standards but the national
  statistical agencies need this product
• As SDMX is an exchange standard for aggregate
  time series, it can map to nCubes in DDI

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Paper 9

• Authors Jannik Jensen and Dan Kristiansen,
  Danish Data Archive
• Title DDI 3 Editor and API
• Discussion
• The DDA has envisioned a new data flow with DDI 3
  editor integrating information from various
  sources
• Editor tool based on layered architecture so that
  others can use

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Paper Structure

• Bibliographic Information
• Background
• Use Case / Requirements
• Design Decisions and Possible Solutions
• Issues and Restrictions
• Outlook

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What Happens Next?

• Papers undergo editing, to be completed by the
  end of the year
• Will be published as part of the DDI Alliance
  Working Paper Series on the DDI site
• May also form the basis for an edition of the
  IASSIST Quarterly

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Questions or Comments?

• Mary Vardiganvardigan_at_umich.edu