Charalampos (Harris) Alexopoulos is a Postdoctoral Researcher at the Department of Information and Communications Systems Engineering of the University of the Aegean, publishing on open data, decision support, smart cities and e-government. He is also a Project Manager in the Information Systems Laboratory of the same department, working on European and National funded research and pilot application projects on open data (ENGAGE, SHARE-PSI 2.0) and decision support (EU-COMMUNITY, PADGETS, NOMAD). Charalampos serves as a track chair to the following conferences: Samos Summit, HICSS, MCIS and DG.O and as a reviewer to ECIS, EJEG, SSCORE and GIQ.