New DDI 3.3 specification available for public review and comment

The DDI Alliance (http://www.ddialliance.org/) is pleased to announce the Public Review of DDI 3.3. This version of the DDI specification includes important updates and new content, including:

  • Classification management (based on GSIM/Neuchatel) 
  • Non-survey data collection (Measurements)
  • Sampling
  • Weighting
  • Questionnaire Design
  • Support for DDI as a Property Graph
  • Quality Statement improvements (useful for Eurostat reporting)

Additionally, DDI 3.3 has a formal model now, so a detailed changelog can be generated between DDI 3.2 and 3.3.

Links to the specification and instructions for comment are found at: https://ddi-alliance.atlassian.net/wiki/spaces/DDI4/pages/500826115/DDI+Lifecycle+3.3+Public+Review

We are eager to obtain feedback from the DDI and RDF communities on this vocabulary. The comment period is open for six weeks until August 3, 2018, and we hope to hear from you!

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