Next Annual Meeting of Member Representatives: 18 May 2020 in Gothenburg, Sweden

The next DDI Alliance Annual Meeting of Member Representatives will be held 18 May 2020 in Gothenburg, Sweden, the Monday of IASSIST

The Annual Meeting of Member Representatives provides a forum for member discussion and feedback. Please save the date. We look forward to seeing many member representatives at the meeting.

June 2019 DDI Alliance Annual Meeting Minutes Available

The minutes of the DDI Alliance June 1, 2019 annual meeting are now available, including from the morning Annual Meeting of Members and the afternoon Scientific Board meeting.

Call for Nominations: DDI Executive Board

This is an election year for the Executive Board, which is responsible for managing the operations of the Alliance, including setting the overall policy and budget, and providing strategic guidance and review of the Alliance’s activities. Elected members of the Executive Board serve for a term of four years, with terms starting in July.  Only full members are eligible to have a representative elected to the Executive Board 

If you would like to nominate yourself or a colleague to this position, please contact us by 5 July.  The election will be held directly thereafter.

DDI XKOS released for public use

The DDI Alliance ( is pleased to announce the public release of XKOS version 1.2, a free and open specification that facilitates sharing and management of statistical classifications.

XKOS is a simple and elegant model to represent complex classifications via their structural and textual properties, as well as the relations between classifications. By leveraging the widely-used Simple Knowledge Organization System (SKOS), XKOS extensions allow linkages to a wealth of existing thesauri and taxonomies to better support statistical classifications and concept management systems. XKOS also refines SKOS semantic properties to allow the use of more specific relations between statistical concepts, classifications, or any other case where SKOS is employed.

XKOS is currently used at a number of national statistical agencies and has been available as a draft since 2013. Since undergoing a final review in 2017, all issues have been addressed and corrected in preparation for the publication of version 1.2.

Links to the specification and instructions for comment are found at:

DDI Alliance annual meeting: 1 June at the UNSW Sydney

The DDI Alliance will hold our annual meeting on Saturday, June 1, 2019, in Hugh Dixson Theatre, AGSM Building, Kensington Campus, UNSW Sydney.  The morning will be devoted to the Meeting of Members and the afternoon to the meeting of the Scientific Board, with lunch provided in between.

The agenda for the meeting is available at: 

We are providing a virtual connection for those who cannot attend the annual meeting in person.  To join the meeting virtually:

To join via phone:

1.) Dial:


    International Callers (

2.) Enter the Meeting ID: 161085099

Looking forward to seeing many of you very soon!  

EDDI19 - 11th Annual European DDI User Conference: Call for Papers


11th Annual European DDI User Conference (EDDI19), DDI - The Basis of Managing the Data Life Cycle

EDDI19 is organized jointly by the Finnish Social Science Data ArchiveTampere UniversityStatistics FinlandGESIS - Leibniz Institute for the Social Sciences and IDSC of IZA - International Data Service Center of the Institute for the Study of Labor.

The Data Documentation Initiative (DDI) is an international standard for describing the data produced by surveys and other observational methods in the social, behavioural, economic, and health sciences.

The meeting will bring together DDI users and professionals from all over Europe and the world. Anyone interested in developing, applying, or using DDI is invited to attend and present.

Call for Papers

We are seeking presentations, talks, papers, posters on all things DDI:

  • Case Studies
  • Mature implementations
  • Early Implementations
  • Interplay of DDI with other standards or technologies
  • Projects in early phases in which DDI is under consideration
  • Critiques of DDI

The topics of the conference include, but are not limited to:

  • User Needs, Efficient Infrastructures and Improved Quality
  • Official Statistics
  • Reusing and Sharing Metadata
  • Data Harmonization
  • Incentives to Document Data
  • Open Data and Linked Open Data
  • Privacy and Access Control
  • Metadata versus Data and Related Ethics
  • Software / Tools


Proposals are welcome for multiple content types and presentation forms.

Content Types

  • Scientific Method
  • Impact for the Community
  • Project Report

Presentation Forms

  • Complete Session
  • Full Paper
  • Regular Presentation
  • Short Presentation
  • Poster/Software Demonstration

Other Submission Types

  • Tutorial or Workshop
  • Side Meeting

If you are interested in submitting a proposal, please have a look at the overview on submissions and use the online submission system of the conference (opens on 23.05.).

  • The deadline for submissions is September 1, 2019, 23:59 CEST.
  • Please have a look at the Call for Paper page for further details.
  • Please consider to indicate your availability as reviewer as well.

General Information

For more information about the EDDI conference series and details on the previous EDDI conferences, look at

We look forward to welcoming you to EDDI2019 in Tampere!

Mari Kleemola and Jon Johnson (co-chairs) 
on behalf of the EDDI19 Program Committee

Welcome New Member: Statistics Canada

The DDI Alliance welcomes Statistics Canada (Corey Chobanik, member representative; Flavio Rizzolo and Farrah Sanjani, Scientific Board representatives) as a Full Member! 

NADDI Conference Held in Ottawa, Canada

The 7th Annual North American DDI User Conference (NADDI19) was held in Ottawa, Canada April 24-26, 2019.  NADDI19 was hosted by Statistics Canada and included 19 presentations, 8 posters, 2 workshops, and discussion sessions.  The program is available on the conference website.  Nearly all presentations are available at

Anil Arora, Chief Statistician of Canada, spoke during the opening keynote speech, "Enabling the modernization of official statistics with metadata standards." Mr. Arora noted, "A national statistical office must deliver timely insights that are grounded in quality, backed by good methodology. And in order to do that, we are intricately dependent on international standards, like the DDI." He later added, "Standards like DDI are going to be crucial if we are to keep pace with the knowledge cycle that constantly surfaces more and more data. This standard will enable timeliness but will also ensure high quality insights." The closing plenary was presented by Jeff Moon, Director, Canadian Association of Research Libraries, Portage Network.  

North American DDI conference -- registration open + agenda

North American DDI 2019 conference: Registration open

Registration is now open for the 7th Annual North American Data Documentation Initiative Conference (NADDI).  The conference theme is "Benefits of Describing Statistical Production and Variables," which emphasizes the benefits of using metadata to drive efficiencies in a research data lifecycle, as well as promotes subsequent re-use of end data products, especially those generated by federal and national statistical agencies.  The Data Documentation Initiative (DDI) is an international standard for describing the data produced by surveys and other observational methods in the social, behavioral, economic, and health sciences.

Important Information

  • March 29: Early-bird registration deadline

  • Free Workshops: April 24, 2019

  • Conference Dates: April 25-26, 2019

  • Conference Location: Statistics Canada, Ottawa, ON

NADDI 2019 Agenda

Anil Arora, Chief Statistician of Canada, will open NADDI 2019 on April 25th with a keynote presentation, "Enabling Modernization of Official Statistics with Metadata Standards."

Free pre-conference workshops will be held on April 24th, with the main conference held April 25-26. The full agenda is on the conference web site.

How to Register

Registration is found on the conference web site.  The deadline for early-bird registration is March 29, 2019.

Annual Meeting of Member Representatives: 1 June 2019 in Sydney, AU

The Annual Meeting of Member Representatives will be held on Saturday, 1 June 2019, in Sydney, AU (directly after IASSIST). Remote participation will be available for those who can't attend in person.

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