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DDI Lifecycle: Moving Forward Outcome of the Recent Workshop in Dagstuhl

DDI Lifecycle: Moving Forward Outcome of the Recent Workshop in Dagstuhl. Joachim Wackerow. Will be model-based Easier to understand Better interaction with other disciplines and standards Easier to develop and maintain in a consistent way Will enable more efficient software development.

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DDI Lifecycle: Moving Forward Outcome of the Recent Workshop in Dagstuhl

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  1. DDI Lifecycle: Moving ForwardOutcome of the Recent Workshop in Dagstuhl Joachim Wackerow

  2. Will be model-based • Easier to understand • Better interaction with other disciplines and standards • Easier to develop and maintain in a consistent way • Will enable more efficient software development

  3. Why Now? • After the experience of developing and using the initial DDI-L structure • We find continued improvement of the development line is limited by the lack of a data model • Further, we are experiencing pressure for changes from several directions at once • new content from substantive working groups, which requires new approaches to the design of the specification.

  4. Non-DDI Utility DDI Utility DDI Codebook DDI Document DDI Simple Data Description Functional Utility Core Foundational DDI Foundational Metadata Non-DDI Non-DDI Functions DDI Simple Questionnaire DDI Core

  5. Modularized DDI Model

  6. Deliverables • Completed model templates for the 4 identified functional areas – In progress • First draft of common model documentation based on the completed templates – In progress • Draft design and specification of production process – Done • Draft design principles for DDI work products In progress • Documentation of DDI Alliance workflows In progress • Draft XML syntax binding specification In progress • Draft RDF syntax binding specification Mostly done • Draft business rules specification for model transformations In progress • Documentation of modeling style (includes UML profile) In progress

  7. Representations • XML Schema / XML for exchange and preservation • OWL/RDF for exposure to Semantic Web / Linked Data • Frameworks • Java/C#, … for processing • DBMS for storage • Data as a Service, Service Oriented Architecture (SOA), Web services, REST

  8. Timeline • Dagstuhl October 2012, 5 days • Dagstuhl October 2013, 5 days • EDDI – December 2013, 2 days • NADDI – April 2014, 5 days • IASSIST – June 2014, 5 days • Dagstuhl – October 2014, 5 days • Plus virtual meetings in between • Goal: First version of model March 31, 2015

  9. DDI Versions

  10. Dagstuhl Workshop Participants2012 2013

  11. More Information http://www.ddialliance.org/ddi-moving-forward-process

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