1. Introduction to DDI with a Technical Perspective
7th Workshop of German Panel Surveys
01.02.2013
Thomas Bosch
M.Sc. (TUM)
PhD student
boschthomas.blogspot.com
GESIS - Leibniz Institute for the Social Sciences
5. General Information About Missy
• Missy (Microdata Information System)
• Provides detailed information about individual datasets
• Contains metadata of microdata relevant for the social sciences
• Facilitates data usage for research
• Currently consists of microcensus survey
• Largest household survey in Europe
• statistics about
• general population in Germany
• situation about employment market
(occupation, professional education, income, legal insurance, …)
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6. General Information About Missy
• May be split in two parts
• Missy Web (end-user front-end part)
• Missy Editor for documentation (back-end part)
• Consists of approx. 500 Variables & Questions per year
• Captures 25 years, since 1973
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7. Missy 3
• That’s what it’s all about! The “next generation Missy”
• Integration of further surveys, e.g. EU-SILC, EU-LFS, …
• Implementation of Missy Editor as a Web-Application
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8. Use-Cases in Missy
• General Information about survey 'microcensus'
• Variables by thematic classification and year
• List of variables by year
• List of generated variables by year
• Show details of a variable with statistics
• Variable-Time Matrix
• List of variables by thematic classification and year (selectable)
• Questionnaire Catalogue
• In future: browse by survey and country! 8
10. Use-Cases in Missy
• General Information about survey 'microcensus'
• Variables by thematic classification and year
• List of variables by year
• List of generated variables by year
• Show details of a variable with statistics
• Variable-Time Matrix
• List of variables by thematic classification and year (selectable)
• Questionnaire Catalogue
• In future: browse by survey and country! 10
12. Use-Cases in Missy
• General Information about survey 'microcensus'
• Variables by thematic classification and year
• List of variables by year
• List of generated variables by year
• Show details of a variable with statistics
• Variable-Time Matrix
• List of variables by thematic classification and year (selectable)
• Questionnaire Catalogue
• In future: browse by survey and country! 12
14. Use-Cases in Missy
• General Information about survey 'microcensus'
• Variables by thematic classification and year
• List of variables by year
• List of generated variables by year
• Show details of a variable with statistics
• Variable-Time Matrix
• List of variables by thematic classification and year (selectable)
• Questionnaire Catalogue
• In future: browse by survey and country! 14
15. Use-Cases in Missy
• General Information about survey 'microcensus'
• Variables by thematic classification and year
• List of variables by year
• List of generated variables by year
• Show details of a variable with statistics
• Variable-Time Matrix
• List of variables by thematic classification and year (selectable)
• Questionnaire Catalogue
• In future: browse by survey and country! 15
17. Use-Cases in Missy
• General Information about survey 'microcensus'
• Variables by thematic classification and year
• List of variables by year
• List of generated variables by year
• Show details of a variable with statistics
• Variable-Time Matrix
• List of variables by thematic classification and year (selectable)
• Questionnaire Catalogue
• In future: browse by survey and country! 17
19. Use-Cases in Missy
• General Information about survey 'microcensus'
• Variables by thematic classification and year
• List of variables by year
• List of generated variables by year
• Show details of a variable with statistics
• Variable-Time Matrix
• List of variables by thematic classification and year (selectable)
• Questionnaire Catalogue
• In future: browse by survey and country! 19
46. Group (study and variable information)
--> variables in this group are comparable
--> inherit
label = 'variable age'
--> overwrite variable information
label = 'age'
+ easy to understand
- Implementation
- changes --> reorganize groups
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142. PhysicalDataProduct
• Physical layout of data that do not change when physical instance
data files are merged or split
• Physical Data Structure
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151. Colectica
• Commercial software tool
• http://colectica.com/
• Multiple versions for individuals, departments, and institutions
• Multiple videos on the website for getting started
151
158. Feel free to ask any unsolved questions!
Thomas Bosch
M.Sc. (TUM)
PhD student
boschthomas.blogspot.com
GESIS - Leibniz Institute for the Social Sciences
158
