1. EDDI2016 Esra Akdeniz, Wolfgang Zenk-Möltgen 06.12.2016
Creating a DDI-Lifecycle based Metadata Schema for the GESIS Data Archive
EDDI2016
Esra Akdeniz, Wolfgang Zenk-Möltgen

2. „DDILimDas“ “Use of DDI-Lifecycle at the GESIS Data Archive”
internal project at the GESIS Data Archive
project duration: two years (01/ /2016)
Main objectives: Change products, projects and processes at DAS from DDI-C as documentation and archiving format to DDI-L
Harmonization
Facilitation
Reusability
Harmonization (of preliminary work done in different projects at DAS so far)
Facilitation (of a consistent and coordinated future DDI management)
(focus on) Reusability (in GESIS)

3. Outcome Development of…
a metadata schema for all use cases in the data archive in the DDI-L format
recommendations for all existing tools within Gesis DAS

4. Tools
Missy= metadata at the study and variable level as well as reports and tools for data handling and analysis
DBK= Study Descriptions (Primary data from survey research, historical social research and texts for content analyses)
CBE= Context level information for a customized selection of variables ( Topics & context, Panel & context, Scales & context, Time integration & context, Space integration & context, User & context)
CharmStats =precise and transparent documentation of harmonization of variables
DSDM = to document a dataset of a cross-section or comparative survey on variable level
da|ra = Registration agency for social and economic data
Datorium = self-archiving tool
Stardat = Data Archiving Suite (includes all functions of DBK on study level to describe studies, includes functions of DSDM on variable level, includes functions of CBE on context level, includes functions to generate reports, includes self-archiving (datorium), includes functions zu generate versions and documentation about errata)

5. DDILimDas Metadata Elements
Sections of Metadataelements
Number of Metadataelements
Information on Project 3
Information on Study
105
Information on Person(s) 22
Information on Institution(s) 13
Information on Dataset 62
Information on Survey Instrument 12
Information on Questions 19
Information on Answers 6
Information on Documents 26
Information on Groups 11
Information on Products 8
Information on Concepts/Categories
Information on Literature 21
Information on Notes 5
Information on DDIInstance 9
Total
330
Sections of Metadataelements
Information on Project
Information on Study
Information on Person(s)
Information on Institution(s)
Information on Dataset
Information on Survey Instrument
Information on Questions
Information on Answers
Information on Documents
Information on Groups
Information on Products
Information on Concepts/Categories
Information on Literature
Information on Notes
Information on DDIInstance

6. DDILimDas Metadata Schema

7. DDILimDas Metadata Elements
Sections of Metadataelements
Number of Metadataelements
Number of Mappins (Workarounds)
Elements without Mappings
Information on Project 3 -
Information on Study
105
96 (20) 9
Information on Person(s) 22
21 (3) 1
Information on Institution(s) 13
13 (1)
Information on Dataset 62
57 (18) 5
Information on Survey Instrument 12
12 (2)
Information on Questions 19
19 (5)
Information on Answers 6
Information on Documents 26
24 (5) 2
Information on Groups 11
10 (3)
Information on Products 8
7 (7)
Information on Concepts/Categories 7
Information on Literature 21
19 (6)
Information on Notes 4
Information on DDIInstance
Total
330
307 (70) 23

8. Harmonization between tools
DBK
da|ra
Stardat
CharmStats
datorium
„name of primary researcher“
„primary researcher institution“
„person“
„affiliation“
„institution“
„primary reseacher“
„name“
„persontype“
„primary researcher“
„institution (of the primary researcher)“
DDILimDas
Step 1a:
Name of a person
Step 1b:
Name of an institution
(independently if it´s an institution as a primary researcher or an institution of the primary investigator)
ddi:DDIInstance/g:ResourcePackage/a:OrganizationScheme/a:Individual/a:IndividualIdentification/a:IndividualName/a:FullName/r:String
ddi:DDIInstance/g:ResourcePackage/a:OrganizationScheme/a:Organization/a:OrganizationIdentification/a:OrganizationName/r:String
Step 2:
Reference on either OrganizatioName or IndividualName
ddi:DDIInstance/g:Group/g:Subgroup/s:StudyUnit/r:Citation/r:Creator/ r:CreatorReference/r:TypeOfObject="Individual/Organization“
Step 3a:
Relation elements for linking Individuals to Organizations by defining the Individual as SourceObject
Step 3b:
Defining Organization as TargetObject
Step 3c:
Defining TargetObject of beeing an Affiliation
ddi:DDIInstance/g:ResourcePackage/a:OrganizationScheme/r:Relation/a:SourceObject/a:IndividualReference/r:TypeOfObject="Individual“ +
ddi:DDIInstance/g:ResourcePackage/a:OrganizationScheme/r:Relation/a:TargetObject/a:OrganizationReference/r:TypeOfObject="Organization"
ddi:DDIInstance/g:ResourcePackage/a:OrganizationScheme/r:Relation/a:TargetObject/a:Role/r:Description/r:Content="Affiliation"

9. Example for a Workaround
Element
Definition
Tools
DDI-Mapping
FileSize
Size of a
Dataset File
Survey Instrument File
Document File
DBK
da|ra datorium
Step 1
ddi:DDIInstance/g:Group/g:Subgroup/s:StudyUnit/r:Note/
r:TypeOfNote (with codeListName="GesisTypeOfNote"="FileSize")
Step 2
ddi:DDIInstance/g:Group/s:StudyUnit/r:Note/r:Relationship/ r:RelatedToReference/r:TypeOfObject
Step 3
r:NoteContent/r:Content

10. Steps to go Publish a report on the metadata schema
Produce DDI Profiles for the metadata schema
Supply each GESIS project/tool development with the overall metadata schema
Exchange with CESSDA CMM project

11. Thank you for your attention