The European University Association (EUA), a representative organisation of universities from about 47 European countries, just released a University Autonomy Tool [university-autonomy.eu]. Developed by Raureif and interface designer Christian Behrens, the online visualization analyzes the relationship between universities and the state, in particular by revealing how flexibly universities can take decisions in the context of the rules and regulations that shape their higher education system.
Each (sometimes spiraling) sunburst-like "line" represents a unique indicator, made up by a multitude of squares. The more squares are filled, the more autonomous the higher education system. A high score on an indicator or autonomy dimension indicates that the relevant regulations provide a legal framework without restricting universities in their freedom of action.
See also OECD Better Life Index.