NADDI Conference Held in Ithaca, New York

NADDI2017, the 5th Annual North American DDI User Conference, took place December 5-7, 2016, in Ithaca, New York. The conference was hosted by the Cornell Institute for Social and Economic Research (CISER) and The Roper Center for Public Opinion Research.
The conference program included 15 presentations, 7 posters, and 2 workshops. The keynote address was given by Dr. Peter Enns ("Why We Need Survey Data and Data Archives to Understand Mass Incarceration").

DDI Training Group looking for help creating how-to videos

The DDI Alliance Training Group is creating short how-to videos about frequently asked topics, such as "What is DDI?", "How can you use DDI to document questionnaires?", and "How can you use DDI for repeated data management?"  The goal is to make DDI more understandable to potential users, especially by showcasing practical applications.

The group is looking for assistance from the DDI community.  

  • If you are interested in joining the working group, please contact the chair, Amber Leahey (  
  • If you have suggestions about video topics, please add them to this online spreadsheet.  
  • If you have existing presentations you think would be worth turning into a short video presentation, please let Amber or the Training Group know.

New DDI Working Group: DDI Workflows for Dataverse

A new working group, DDI Workflows for Dataverse, has been created to develop use cases for improved support of DDI in the Dataverse repository platform, and to coordinate development projects that utilize DDI generated by or with Dataverse in support of research data across the lifecycle.  The chairs of the working group are Amber Leahey (Scholars Portal) and Danny Brooke (IQSS, Harvard University).


February 2017 DDI Directions (Volume XV, Number 1) published

The latest edition of DDI Directions, the quarterly DDI Alliance newsletter, has been published.  In this issue:

  • Save the Date: DDI Alliance to Meet in Lawrence, Kansas in May
  • New Member Elected to DDI Alliance Executive Board
  • Call for Papers for NADDI 2017, April 6-7 (PreConference workshop April 5)
  • 8th Annual EDDI Conference Held in Cologne, December 2016 
  • Public Review of XKOS
  • RWX: Top Impact Publications from the Last 20 Years

NADDI 2017 Call for Papers

The 5th Annual North American DDI (NADDI) Conference will be held April 6-7 in Ithaca, NY on the beautiful campus of Cornell University!  NADDI workshops will be held on 5 April.  The theme for this year’s conference, “Metadata Across the Research Data Lifecycle," emphasizes the benefits of metadata creation early in the research data lifecycle, as well as its subsequent re-use throughout.

Aimed at individuals working in and around data and metadata, NADDI 2017 seeks submissions of presentations and posters that highlight the use of DDI and other metadata standards within research projects, survey operations, academic libraries, and data archives. We also invite proposals that address the increasing need for interoperability of standards in research data management and the leveraging of DDI to facilitate data discovery and data integration. Presentations of an applied nature are encouraged—how are you working with DDI and metadata generally within the larger framework of research data management and the research data lifecycle? Submissions of a more technical nature are also encouraged, as well as presentations on the DDI standard itself and its continued development. Please contact with ideas for workshops.

For further details about the conference, please visit  The deadline for submissions is January 31.

Public Review of XKOS

The DDI Alliance is pleased to announce the Public Review of XKOS, an RDF Vocabulary which extends the Simple Knowledge Organization System (SKOS) for the needs of statistical classifications. It does so in two main directions. First, it defines a number of terms that enable the representation of statistical classifications with their structure and textual properties, as well as the relations between classifications. Second, it refines SKOS semantic properties to allow the use of more specific relations between concepts. Those specific relations can be used for the representation of classifications or for any other case where SKOS is employed. XKOS adds the extensions that are desirable to meet the requirements of the statistical community.
Links to the specification and instructions for comment are found at  We are eager to obtain feedback from the DDI and RDF communities on this vocabulary. The comment period is open until February 15, 2017, and we hope to hear from you.

Review of Q2 2016 Development Draft of DDI 4 - Extended Review Period

After discussing the review of the DDI-Views Q2 Development Review with attendees at EDDI 2016, the Technical Committee has decided to extend the review period to 15 January 2017. Please note that the PDF version of the documentation is now available. The Comment and Review Page is found at and provides general information on the purpose of these reviews. The link to the specific page for the Q2 2016 review is found in the red box in the upper right corner of the page. If you have questions or need additional time to complete your review, please contact Wendy Thomas, Chair of the Technical Committee.

EDDI Conference Held in Cologne

EDDI16, the 8th Annual European DDI User Conference, took place December 6-7, 2016, in Cologne, Germany. The conference was hosted by GESIS - Leibniz Institute for the Social Sciences, and organized jointly by GESIS - Leibniz Institute for the Social Sciences and IDSC of IZA - International Data Service Center of the Institute for the Study of Labor.
There were 91 participants from 50 organizations in 17 countries in attendance.  The conference program included 37 presentations and 6 posters, 3 tutorials, and 7 side meetings. Keynote addresses were given by Keith Jeffery ("Metadata: Foundation, Philosopher’s and Rosetta Stones"), and Stefan Winkler-Nees ("Funding, Policies, Community Building - Data Sharing from a Funders Perspective").

Save the date for the next EDDI!

EDDI2017 will be hosted by FORS - Swiss Center of Expertise in the Social Sciences in Lausanne, Switzerland on December 5-6, 2017.  

Chair of the DDI Scientific Board presented at the Sixth Session of OIC Statistical Commission

Joachim Wackerow, Chair of the DDI Scientific Board, presented at the Sixth Session of the Statistical Commission of the Organisation of Islamic Cooperation (OIC-StatCom), which was held 5-6 November 2016 in Konya, Turkey. Wackerow's presentation was titled "DDI and Its Role on Modernizing Official Statistics."

Review of Q2 2016 Development Draft of DDI 4

The DDI Alliance is pleased to announce the Q2 2016 Development Draft of DDI Views, sometimes called DDI4. The comment period for the Q2 Draft is now open. Information on the review process is available from the DDI4 - Comment and Review page, which contains a link to comment instructions and to the release package itself (see the box labeled Current Review in the middle of the page). 
DDI is transitioning to a model-driven specification to support new content and domains, to provide needed flexibility in rendering and packaging, and to ensure a sustainable development process for DDI going forward. The model will enable use-case driven "functional views" of the full model so that prospective DDI users can receive only the subset of DDI classes they need for a specific task or function (e.g., create a simple codebook). The transition also includes moving to a fully automated production framework to create the specification, bindings, and documentation. More information about the DDI work products and how they all fit together is available.
This release is one of several iterative releases, each of which builds on previous releases. The Q2 Draft includes the class descriptions and diagrams for several of the basic parts of the model, XML Bindings, and high level documentation. We are currently working out issues with the RDF/OWL implementation. 
We are eager to obtain feedback from the DDI community in order to improve what we have and to validate our approach. The comment period is open until December 31, 2016, and we hope to hear from you.