Over the last 15 years he has been the coordinator or technical leader in numerous European and national research projects in the areas of e-Business and e-Governance. In addition, Yannis is a contributing member in several standardisation and technology policy committees. He publishes and teaches on government service systems, enterprise interoperability, government transformation and citizen participation; and he was the Best Paper Award winner of the EGOV 2008 Conference, Best e-Government Paper Nominee in the 42nd HICSS Conference, and 1st Prize Nominee in the 2009 European e-Government Awards.