D2.6 Position Paper on Definition of OOP and Situation in Europe
In spite of political expectations and technical advances, the cross-border implementation of the "once-only" principle (OOP) in the EU is limited to a few services so far. The Once-Only Principle Project (TOOP) is an EU-funded large-scale project which aims to explore and demonstrate OOP on a cross-border, collaborative and pan-European scale. This is done by developing a federated architecture, which will be tested in multiple sustainable pilots. TOOP has the potential to provide lessons learned which may assist future implementation and a wider usage of OOP. TOOP also has the potential to bring positive changes both for public administrations and public service users across Europe and beyond. This position paper is the first deliverable of the project and it aims to describe TOOP partners' approach towards OOP; it also summarizes the motivation and ambition behind the project.