Period: Nov 01, 2016 - Oct 31, 2018
Status: abgeschlossen

Once-only is defined in the EU eGovernment Action Plan 2016-2020 as a principle to “ensure that citizens and businesses supply the same information only once […]. Public administration offices take action if permitted to internally re-use this data, in due respect of data protection rules, so that no additional burden falls on citizens and businesses.”

The European Commission's vision on once-only is that “public administrations and government agencies can re-use the data already in their possession on citizens and businesses, under the control and consent of citizens and businesses, by sharing it between themselves. This can allow them to provide administrative service in a pro-active manner. Administrative burden of citizens and businesses will be reduced, legal obligations will be fulfilled faster and citizen services will be simpler and easier. Applied on a wide scale it can lead to smart, inclusive and effective 'Once Only Principle' at European level”.

Hence, the once-only principle aims to eliminate administrative burdens in situations, where citizens are required to provide the same information redundantly to public administrations.

The EC is funding SCOOP4C in the Horizon 2020 programme as a Coordination and Support Action. The project has the following six objectives to contribute to the above strategic vision:


  1. to build up and sustain a stakeholder community (the SCOOP4C community) that will discuss and share experiences of once-only principle implementations for citizens(OOP4C), and that will bring forward issues of concern as well as key enablers for OOP4C implementations.
  2. to identify, collect and share existing good practices of once-only implementations for citizens across Europe and to establish a body of knowledge about the cases, including getting an understanding of currently existing concepts, approaches and solutions.
  3. to discuss challenges, needs and benefits of widely implementing and diffusing the once-only principle in co-creation and co-production contexts involving citizens and governments as data producers and data consumers.
  4. to draw conclusions from comparing existing best practices with needs and challenges, including policy recommendations towards a necessary paradigm change in the public sector and of the citizens, to build up trust on data shared among governments, while no longer bothering citizens to repeatedly provide the same data in public service provisioning.
  5. to identify relevant stakeholders and to develop a strategic stakeholder engagement plan to ensure sustainable implementations of the once-only principle with a large engagement of stakeholders in various co-creative and co-productive public service provisioning contexts.
  6. to develop a tangible roadmap of future areas of actions to implement, diffuse and sustain concepts and implementations of once-only solutions for citizens.


The expected results of this action are depicted in the following:


The University of Koblenz-Landau, Research Group E-Government is coordinating SCOOP4C.


SCOOP4C in Social Media:




Akronym: SCOOP4C


European Commission's Horizon 2020 programme, specific call Co-creation-05-2016 (Co-creation between public administrations: once-only principle)

Project partner

University Koblenz-Landau, Germany
]init[ Digital Communication, Germany
Centre for Research and Technology Hellas, Greece

e-Governance Academy, Estonia
IT-Kommunal GmbH, Austria