Maria Siapera

• University of Piraeus

This paper presents a case study for the application of the “Once Only Principle” (OOP) for cross-border public services where citizens and businesses provide data only once in contact with public administrations. In order to support the European Union (EU)’s vision of a Single Digital Market, a generic federated OOP architecture has been developed...

In the domain of public procurement, more and more of the transactions that are taking place are becoming electronic. For the European Union (EU), PEPPOL is the “standard” for eProcurement with most of the required transactions being done through its eDelivery network. Those transactions need to be trustworthy, and by using the components provided...

Public Procurement Procedures are crucial to economies globally, especially in the European Union. These procedures include different phases, actors, processes, business documents, and information assets that must be arranged across several architectural layers of a pan-European public procurement ecosystem. Orchestrating the aforementioned aspects...

The standardization of procurement procedures is a complex process requiring multiple layers of interoperability along the European Interoperability Framework (EIF) to be ensured. The high number of distinct actors and different legal frameworks involved hampers efficiency and interoperability of procedures. This problem situation is even more crit...

5G does not only aim at higher capacity and lower latency than current 4G in mobile broadband networks, but also to increase the level of programmability, control and flexibility to meet the requirements from innovative use cases such as IoT, smart manufacturing, and immersive media. However, several difficulties still need to be overcome for a bet...