DDI Lifecycle

French National Institute of Statistics and Economic Studies (Insee)

The French National Institute of Statistics and Economic Studies (Insee) has developed a metadata-driven survey data collection process including a questionnaire generator code-named Eno ). This tool operates on a formal description of a questionnaire in DDI and executes a completely automated chain of transformations to produce the actual collection instrument(s) (web and paper forms, interviewer questionnaire) and their documentation.

DDI Basics

This training module, developed by Wendy Thomas and Marcel Hebing, features the following sections:

  • Learn DDI-L in 60 Seconds...Plus
  • Identification and Versioning
  • Agents: Organizations and Individuals
  • DDI XML Schemas and Main Structures
  • DDI and Data Comparison
  • Introduction to DDI XML and Metadata
  • DDI Profiles
  • DDI and Other Standards

Simple questionnaire

Description: 

Use of Question Item Type, Response Domain, and Instrument Control Construct (including entry of PreText and IfThenElse)

Creator(s)
Contact email: 
ddi@ddialliance.org
Availability: 
Unknown
DDI version(s) supported: 
3.0
Type: 
Markup Examples

NCube

Owner: 
Description: 

Example showing the use of the NCube Logical Product structure, NCube Physical Data Structure, and Physical Instance

Creator(s)
Name(s) of individual author(s)/programmer(s): 
Wendy Thomas
Contact email: 
wlt@umn.edu
DDI version(s) supported: 
3.0
Type: 
Markup Examples

International Standard Classification (ISCO)

Creator(s)
Name(s) of individual author(s)/programmer(s): 
Joachim Wackerow, ZUMA/GESIS
Contact email: 
joachim.wackerow@gesis.org
Availability: 
Unknown
DDI version(s) supported: 
3.0
Type: 
Markup Examples

ICPSR metadata record

Description: 

Sample online catalog record using the American National Election Study, 2004

Creator(s)
Contact email: 
info@ddialliance.org
DDI version(s) supported: 
3.0
Type: 
Markup Examples

German Socio-Economic Panel (SOEP)

Description: 

Example showing the grouping approach for comparable variables, description of derived variables as well as the relationship of waves and the household / person relationship

Creator(s)
Name(s) of individual author(s)/programmer(s): 
Joachim Wackerow, ZUMA/GESIS
Contact email: 
joachim.wackerow@gesis.org
Availability: 
Unknown
Operating system requirements
Supported Operating Systems: 
Other
DDI version(s) supported: 
3.0
Type: 
Markup Examples

Geography

Owner: 
Description: 

Use of Spatial Coverage Type

Creator(s)
Name(s) of individual author(s)/programmer(s): 
Wendy Thomas
Contact email: 
wlt@umn.edu
Availability: 
Unknown
Operating system requirements
Supported Operating Systems: 
Other
Support Available: 
None
DDI version(s) supported: 
3.0
Type: 
Markup Examples
Exports DDI XML: 
Unknown
Imports DDI XML: 
Unknown