The Once-Only Principle for Europe Conference in Vienna, Austria in September 2018!

Wed, 15 Aug 2018

In September, the second event devoted exclusively to the once-only principle (OOP) will take place in Vienna, Austria. It is co-hosted by SCOOP4C and TOOP. 

The event will host speakers from the European Commission, experts from TOOP and SCOOP4C projects as well as a range of stakeholders, including representatives of the countries, which are already working on the initial implementation of the OOP. During the first day of the conference, SCOOP4C and TOOP will present the main achievements of the projects; conference participants will be able to participate in a world café session and discuss the most relevant topics concerning the impact of the OOP on the Digital Single Market. 

The second day will focus on high-level discussions of the OOP environment in the European Union. Relations to the Single Digital Gateway Regulation and the impact of the General Data Protection Regulation will be discussed. A number of case studies of OOP implementation within and outside of the EU will also be presented, followed by a panel discussion on the impact of OOP in the EU. 

The aim of the conference is to promote the once-only principle, present the achievements of the projects and explain how the implementation of the principle will benefit to all participants of the European Digital Single Market. The core idea of the OOP is that e-service users will be providing data to public administrations only once. The data then is safely stored and exchanged between various authorities in different countries, resulting in streamlined provision of digital public services across borders. This will make life of European businesses and citizens easier, as well as reduce costs for public administrations.

The event is co-organised by SCOOP4C and TOOP, which are striving to explore and demonstrate the once-only principle across borders from two perspectives: businesses and public administrations (TOOP) as well as European citizens (SCOOP4C).

Time and Location

Date: 24th+25th September 2018
Venue: Austrian Federal Computing Centre, Vienna, Austria


Conference participation is free of charge, but registration is required. 

To register to the conference, please visit:


September 24th, 12:00-17:30 



Welcome coffee & exhibition


Welcome and Opening Georg Nesslinger, Federal Ministry Digital and Economic Affairs, Austria

Serge Novaretti & Anders Gjoen, European Commission 

Maria A. Wimmer, SCOOP4C Project Director

Robert Krimmer, TOOP Project Director 


From national best practices to cross-border public services with OOP for citizens: A roadmap and policy recommendations from SCOOP4C

Maria A. Wimmer, SCOOP4C Project Director

Ronald Sallmann, Director, IT-Kommunal


TOOP presentation

Robert Krimmer, TOOP Project Director 

Lefteris Leontaridis, TOOP Piloting Manager

David Mitzman, InfoCamere


The APis4DGov study on digital Government APIs

Mónica Posada Sánchez, Joint Research Centre of the European Commission




Coffee break


World café session


Wrap-up & closing the first day of the conference


Social event (invitation only) 

September 25th, 09:00-13:00


Welcome coffee & exhibition


Opening, presenting the objectives for the second day 


Keynote speeches – Importance of Once-only for Policy  

Andrea Servida, DG CONNECT


Single Digital Gateway Regulation 

Hettel Varik, Digitalisation of the Single Market, DG Internal Market, Industry, Entrepreneurship and SMEs


Impact of the General Data Protection Regulation on OOP 


Coffee break 


Cross-border implementation of OOP in Europe 

Lefteris Leontaridis, TOOP Piloting Manager


Implementation of OOP in Latin America

Elsa Estevez, Universidad Nacional del Sur, Argentina


Panel discussion on the impact of the once-only principle on end users and public administrations in the EU 

Moderator: Jeremy Millard, Danish Technological Institute

Panelists: Elsa Estevez (National University of the South), Andrea Servida (DG CONNECT), Georg Nesslinger (BMDW), Alessia Neuroni (Bern University of Applied Sciences), Natalia Aristimuño Pérez (DG DIGIT, ISA²)


SCOOP4C stakeholder community handover to TOOP


Wrap-up and closing of the OOP conference


Lunch and networking