Main feature: Group of services and applications serving Digital Citizens: - Feedback and suggestions service: Send feedback and suggestions to the city government through the Da Nang Suggestion application. - Bus Lookup Service: use the search features, track the operation of Da Nang buses through Dana Bus application, BusMap application - Open Data mining service through Open Data Portal (Congdulieu.vn) - Look up epidemiological information, Covid-19 map - Performing Public Services: performin