A Qualitative Data Model for DDI

The Qualitative Data Model Working Group was established in January 2010 with the charge “To develop a robust XMLbased schema for qualitative data exchange (compliant with DDI) and encourage tools development based upon these needs.” This report describes the preliminary model developed by that group via online meetings, and working meetings in Gothenburg (2011) and Bergen (2012).  This model, described in UML, was developed to cover three main scenarios:  1. Qualitative data collections needing metadata at the object level only  2. Qualitative data collections where segments of objects need to be delineated and described and where segments of different physical representations of the same logical objects possibly need to be linked 3. Qualitative data collections as in the second case where related quantitative data have been generated through techniques such as text mining