The objective of OPIS project eDemocracy and Open Government for OpenData is to develop a central infrastructure with services for data providers and users. For this public administration transformation activity we will provide broader context of legislation and challenges ahead of us. Solutions created in this project are prepared to ease data provider from the burden of data access tasks – format and structure transformations, internet publishing, accordance with standards, communication with users. We will illustrate the successful cooperation model on pilot project of enabling access to one reference registry in form of OpenData.