Prof. Wojciech Cellary attended a conference „e-Administration for Business – e-Services for Business”, organized in Warsaw by Ministry of Administration and Digitization, Institute of Logistics and Warehousing and Ministry of Economy. Prof. Cellary chaired a discussion panel entitled “Business-friendly e-Services – Confrontation between businesses and public institutions over e-services development visions”. During a session “Efficiency of Public e-Services” prof. Cellary presented a lecture entitled „Cloud computing as a way to improve efficiency of public e-services”.