2.1

DDI Data Description Statistics Protection Software

Owner: 
Description: 

It is a tool which enables easy anonymization processes of DDI standard univariate statistics. It was developed primarily to address the issue of statistical disclosure control for single variable aggregated data, publically distributed to particularly provide information to scientific researchers to promote detailed official statistics microdata use for scientific purposes. It enables quick and easy automatic data protection by performing data protection methods such as bracketing, top- and bottom-coding, variable (information) removal, numeric descriptive statistics protection and low frequency protection following the minimum frequency rule. In contrast to existing microdata and aggregated data anonymization tools, the developed software protects aggregated data directly in the XML code.

Creator(s)
Name(s) of individual author(s)/programmer(s): 
Sebastian Kočar (author)
Katarina Stupica (programmer)
Name(s) of institution(s): 
Social Science Data Archives (University of Ljubljana, Slovenia)
Contact email: 
sebastian.kocar@fdv.uni-lj.si
Availability: 
Beta release
Latest Version: 
1.1
Operating system requirements
Supported Operating Systems: 
Win32
Win64
Programming/scripting languages used: 
Python
Support Available: 
Community-driven support
DDI version(s) supported: 
2.0
2.1
2.5
Type: 
Tool
Exports DDI XML: 
Yes
Imports DDI XML: 
Yes

DDI-XSLT

Owner: 
Description: 

A collection of xslt-stylesheets for DDI for transformation the metadata to other formats. Curren XSLT in development: DDI 3.1 to XHTML DDI 2.1 to RDF DDI 3.1 to datacite (development version )

Creator(s)
Name(s) of individual author(s)/programmer(s): 
Dan Kristiansen
Jannik Vestergaard Jensen
Thomas Bosch
Benjamin Zapilko
Name(s) of institution(s): 
Danish Data Archive
Danish Data Archive
Gesis
Gesis
Contact email: 
olof.olsson@snd.gu.se
Availability: 
Alpha release
Operating system requirements
Supported Operating Systems: 
Win32
Win64
Linux32
Linux64
Macintosh
Other
Support Available: 
Community-driven support
DDI version(s) supported: 
2.1
3.1
Type: 
Tool
Imports DDI XML: 
Yes

DBKfree

Description: 

The Data Catalogue (DBK) of the GESIS Data Archive holds study descriptions of all archived studies. The software DBKEdit for maintenance and DBKSearch for research in these holdings was developed by the GESIS Data Archive to make this service available. DBKEdit und DBKSearch are distributed as DBKfree to be used by others. Thus, interested users are able to describe their own catalogues on the basis of that and publish them on the web. (Sorry, DBKEdit is German only at the moment).

Creator(s)
Name(s) of individual author(s)/programmer(s): 
Wolfgang Zenk-Möltgen
Name(s) of institution(s): 
GESIS - Leibniz Institute for the Social Sciences
Contact email: 
Wolfgang.Zenk-Moeltgen@gesis.org
Availability: 
In production
Latest Version: 
1.8
Operating system requirements
Supported Operating Systems: 
Win32
Win64
Other system requirements: 
MySQL, IIS
Programming/scripting languages used: 
Active Server Pages (ASP), javascript
Support Available: 
Free, to any user
DDI version(s) supported: 
1.x
2.0
2.1
Type: 
Tool
Exports DDI XML: 
Yes
Imports DDI XML: 
No

Dataset Documentation Manager

Owner: 
Description: 

Developed by the Data Archive of GESIS, this tool imports SPSS data files; allows documentation of questions, sub-questions and answers; enables language-specific documentation; shows two languages concurrently on the screen; permits reuse of question documentation; exports into a DDI 2-compatible format, for Nesstar or long-term preservation; and exports into a DDI 3-compatible format, supporting enhanced publications.

Creator(s)
Name(s) of individual author(s)/programmer(s): 
Alexander Mühlbauer
Wolfgang Zenk-Möltgen
Name(s) of institution(s): 
GESIS - Leibniz Institute for the Social Sciences
Contact email: 
Wolfgang.Zenk-Moeltgen@gesis.org
Availability: 
In production
Latest Version: 
2.5
Operating system requirements
Supported Operating Systems: 
Win32
Programming/scripting languages used: 
Visual Basic 6
Support Available: 
Free, to any user
DDI version(s) supported: 
1.x
2.0
2.1
Exports DDI XML: 
Yes
Imports DDI XML: 
No

DDI Validator

Description: 

Online schema validation of DDI-Lifecycle and DDI-Codebook (2.1) and 2.5 later on.

Creator(s)
Name(s) of individual author(s)/programmer(s): 
Olof Olsson
Name(s) of institution(s): 
SND
Contact email: 
olof.olsson@snd.gu.se
Availability: 
Beta release
Latest Version: 
0.2
Operating system requirements
Supported Operating Systems: 
Win32
Win64
Linux32
Linux64
Macintosh
Support Available: 
Free, to any user
DDI version(s) supported: 
2.0
2.1
3.1
Type: 
Tool
Exports DDI XML: 
No
Imports DDI XML: 
Yes

DDI DExT

Taxonomy upgrade extras: 
Description: 

Tool to import data and DDI metadata from SPSS files with conversion to ASCII and re-export capabilities to SAS, Stata and SPSS. Please note: URL for web site is the direct download link. The DDI-DExT (Data Exchange Tools) is a collaborative project between the UK Data Archive and the Open Data Foundation for the development of data archiving and conversion tools. Supported by the UKDA Data Exchange Tools (DExT) initiative, the project aims at the development of open source utilities for the conversion of quantitative data into a standard archiving format and export to common statistical packages or database systems. The application is based on the DDI specification and supports metadata export to DDI 2.0 and DDI 3.0. This initial product is a proof of concept and focuses on SPSS as the input data format with data export capabilities to ASCII, SAS, Stata, and SPSS. The output of the DDI DExT project has been donated to the DDI Foundation Tools Program.

Creator(s)
Name(s) of individual author(s)/programmer(s): 
Pascal Heus
Name(s) of institution(s): 
Open Data Foundation
Contact email: 
info@opendatafoundation.org
Availability: 
No longer developed, but still available
Latest Version: 
20080426
Operating system requirements
Supported Operating Systems: 
Win32
Other
If other, please describe:: 
This is an Eclipse application so should run across OS but was only tested with Windows.
Other system requirements: 
The DDI-DExT application is available for download from the project repository on ODaF Forge. Two packages are made available: the main DDI-DExT application and the SPSS Reader. The DDI-DExT main tool is a stand alone Eclipse RCP application that manages "archive" projects that hold a collection of data files. The data can be imported from most SPSS files and are preserved in fixed ASCI format accompanied by DDI 3.0 based metadata to capture the file and variable level information extracted from SPSS. Archived data files can be redistributed to users for various statistical packages (currently SAS, Stata and SPSS). The export wizard attempts as much as possible to take into account the differences or incompatibilities between the software packages (like variable name lengths, string and date formats, etc.). It also has the ability to simultaneously generate multiple output formats for multiple files and save the resulting files in either a folder or a compressed ZIP file. The output can also contain DDI 3.0 and DDI 2.1 XML metadata for the generated files. The underlying SPSS Reader Java package is also made available for developers interested in exporting data and metadata out of SPSS files. The package has the ability to generate data in fixed, delimited and CSV ASCII formats as well as export metadata in DDI 3.0 and DDI 2.1 XML formats. The package has been tested with a wide range of SPSS files produced on different platforms and varying from version 4 to 16. While minor issues remain to be addressed, the library is capable of reading most SPSS data files.
Programming/scripting languages used: 
Java, Eclipse RCP
Support Available: 
None
DDI version(s) supported: 
2.1
3.0
Type: 
Software
Exports DDI XML: 
Yes
Imports DDI XML: 
No

Nesstar Publisher

Owner: 
Description: 

Nesstar Publisher is an advanced data management program. It consists of data and metadata conversion and editing tools, enabling the user to prepare these materials for publication and make such resources available to a wider audience. The program allows users to enhance datasets by combining a wide range of catalog and contextual information. Users are given, for example, complete control over the structure of the metadata within internationally recognized data documentation schema, including inserting Web links and URLs that can be viewed within the Nesstar Web client. Nesstar Publisher also allows merging of DDI documents containing markup for different sections of the DDI for the same study. This is especially useful for merging in variable description information generated from SPSS/SAS data definition statements or export files with study descriptions and question text.

Creator(s)
Name(s) of institution(s): 
Norwegian Social Science Data Services
Contact email: 
nesstar-support@nesstar.com
Availability: 
In production
Latest Version: 
4.0
Operating system requirements
Supported Operating Systems: 
Win32
Win64
Programming/scripting languages used: 
C++, Java
Support Available: 
For-fee
DDI version(s) supported: 
1.x
2.1
Exports DDI XML: 
Yes
Imports DDI XML: 
Yes

ICPSR metadata record

Taxonomy upgrade extras: 
Description: 

Online catalog record using the American National Election Study, 2004

Creator(s)
Name(s) of individual author(s)/programmer(s): 
n/a
Contact email: 
info@ddialliance.org
Availability: 
Unknown
Operating system requirements
Supported Operating Systems: 
Other
DDI version(s) supported: 
2.1
Type: 
Markup Examples