Open Data has become a widespread phenomenon and it has entered the Danish Public bodies and Government. The development and digital implementation of Open Data consist of legal claims and technical solutions which to a great extent assist this development. Hence, this thesis study has a focus on 1) how the Government institutions and Non-Governmental organisations interact and organise themselves, and 2) how the definition and discourses of openness and data might affect the value of Open data. The intention of this thesis has been to provide a picture of Open Data in Denmark and how this phenomenon is understood. This is done by investigating some of the constitutive legal systems, technologies and development programs, to give a clearer look at some of the most essential and influential supportive systems of Open Data. Moreover a descriptive review of each of the studied actors’ Open Data identity, obstacle, visions and goals is given. The purpose of this is to provide an understanding and to give an impression of their different approaches to Open Data and in the end how they position themselves in relation to each other. Besides that, this thesis contains the exploration/examination of how the involved actors define and articulate Open data. This is done to highlight the many ways in how Open Data might be handled. This interplay between humans and technology is combined and analysed by using Actor Network Theory. Eventually different topics within this study are discussed to give recommendations and inspiration for further research.