Resources of Open Data in Ukraine

The article focuses on the open data and public information. The characteristics of open data are availability, free use, versatility, ease of processing. The main objectives of the study are to reveal the classification features of the data, the prerequisites for opening data for public institutions in Ukraine, to identify the principles of working with public and open data in Ukraine and the scope of their application. Methodologies include: a classification method for formalized data description; the method of generalizing and analyzing large amounts of data, the method of observation to find out the extent of the dissemination of open data in Ukraine; a chronological method for constructing a timeline for the dissemination of open data in Ukraine. Results. In terms of content, the data is classified into general cultural, historical, biographical encyclopedias, dictionaries; structured by theme in directories; quantitative indicators; geolocal data; user activity data. The public information with restricted access is distinguished; confidential information; classified information; business information; personal and public information in the form of open data. There are three open source data resources in Ukraine: E-data; ProZorro and State Portal of Open Data; also, there act open source data monitoring and control services, information and analytical resources. The main measure of effectiveness is the social effect of influencing open data understanding and promoting the use of services to access open data. Not just the data itself, but its correct interpretation and interpretation for the citizens is valuable in storytelling. Involvement of Ukrainians in the principles of state control and the possibility of unconditional access to the necessary information at any time ensure the formation of an open society, the development of democracy and civil society, create opportunities for business development, and form a responsible and active citizenship among citizens. Open data is an inexhaustible source for successful startups.