State Archives of Belgium

Our collective memory!

FR | NL | DE | EN

The SODA Project: A data archive for social sciences

Texte petit  Texte normal  Texte grand


Scientific research and innovation are essential components of progress. As such they benefit humankind at large. Yet science cannot properly function without the pooling of knowledge. Sharing research data makes it possible to reuse them. This concerns most of the various disciplines of social sciences, which are heavily data-driven. But sharing datasets is impossible without an adequate infrastructure.

CESSDA: The European network of data archives

The first infrastructures dedicated to the preservation and dissemination of survey data in Europe were created in the 1950s. As stewards of scientific data, they came to be known as ‘data archives’.

Most European countries nowadays have such a central data archive despite the differences in terms of size or resources.

In 1976 the various actors in the field of data archiving came together and created a formal network called the Consortium of European Social Science Data Archives (CESSDA). This entity works as a distributed platform for its member states as well as observer members. Its main goal is the support of comparative social science research at the European level.

In 2017 CESSDA earned the status of European Research Infrastructure Consortium (ERIC), a legal entity under European law endowed with legal capacity in all states of the European Union.

Data archiving and the SODA project

The SODA (Social Sciences Data Archive) project aims to develop a prototype for a data archive that will become the Belgian representative in CESSDA and beyond. This future entity must provide different types of services that address the needs of the social science research community.

Such services, which revolve around the concept of data lifecycle, are research, planning, collection, analysis, and archiving.

  • Research: Access to existing data through a portal that links to one or several databases;

  • Planning: Reviewing datasets to help conceive new research projects;

  • Collection: Training, tools and services that support the data collection process;

  • Analysis: Encoding and enriching raw data in order to perform secondary analysis;

  • Archiving: Secure long-term preservation of research data.

To reach these objectives, the SODA project involves:

  1. Elaborating the business model of the future organization, including the tasks and responsibilities of the various potential partners of the service provider;

  2. Studying the legal and organizational framework which the Belgian data archive will integrate;

  3. Preparing a physical and software infrastructure to support the prototype;

  4. Devising a crosswalk between the metadata standards of traditional archives, notably XML-EAD (eXtensible Markup Language – Encoded Archival Description), and that of social sciences, DDI (Data Documentation Initiative).


The project, which is financially supported by the Belgian Federal Science Policy Office (BELSPO), brings together the following partner institutions:

  • State Archives of Belgium (coordinating institution)
  • Université catholique de Louvain (UCLouvain) : Jean-Paul Sanderson, Centre de recherche en démographie (DEMO), headed by Thierry Eggerickx.
  • Vrije Universiteit Brussel (VUB) : Laura Van den Borre, Interface Demography, headed by Christophe Vanroelen.


At the State Archives the project is managed by:


09/01/2020 - Events - NAB
FOSDEM’20 Dataverse Fringe Meeting - On 31 january 2020

This meeting on the sidelines of FOSDEM'20 offers the opportunity to exchange experiences with Dataverse software and to gather Dataverse users from all over Europe and beyond. One of the Dataverse developers, Philip Durbin of Harvard University, will be present at the meeting.

02/12/2019 - Research - NAB

The Université libre de Bruxelles (ULB) and the Vrije Universiteit Brussel (VUB) organized a conference about open science on Wednesday 23 October 2019. The SODA team was there to present our project, whose goals of preserving research data and making them available for reuse is a concrete effort towards a more open science.

02/12/2019 - Research - NAB

At the end of September 2019 data experts from across Europe gathered at the UK Data Archive (UKDA) for the annual CESSDA Expert Seminar (CES 2019). Belgium was represented by the SODA project, one of whose researchers gave a presentation about the new Open Data and Public Sector Information directive.

The SODA project team would like to wish you a most happy new year! 2019 is the home stretch for the SODA project. Our feasability study for the establishment of a data archive and service provider for the social sciences in Belgium will yield its final report by the end of the year. This entails several challenges yet also opportunities. On the threshold of Europe 2020 the SODA project will finally deliver a clear roadmap that will guide decision-makers when the time comes to truly launch and sustain the Belgian data archive once the prototype is up and running. The project priorities are the following.

Open (research) data, open science, open access, data management plans, data security, protection of privacy… Such are but a few of the many questions that Belgian social scientists are now faced with more than ever. The SODA project team sought to learn more about the needs and concerns of its target audience by sending a needs assessment survey to all Belgian universities.

Links e-Procurement