The model of a sustainable as well as future-oriented and future-applicable development as mentioned above consists of three dimensions: ecological (dimension of origin), economical and sociological. The required polycentric-institutional change, based on the study with the same name: Institutional changes for politics of sustainability (Minsch et. al.), from Institutes of economics and ecology/Switzerland and organizational communication/Germany, is an analysis of related institutional proposals with four basic strategies, put together as an atlas for institutions. The study was published in 1998 for the Enquetecommission/Germany. Previous works, which have analysed the concept and model of sustainable development, show so far a deficit, as they have not identified a fourth dimension: the politico-cultural dimension. The politico-cultural side of development of the sustainable rectangle and the interaction between the polity level and political (politics) level paradoxically contribute to an overcoming of the nature-culture-contrast. It is a paradox because this nature-culture-contrast caused and still caused a negative ecological, economical, social and politico-cultural sustainable development. The institutions structure is being modified and improved by institutional innovations in favour of a constant and future-oriented sustainable development. The comparative case study is the methodological foundation of the comparison of the political-administration system. The strategy of sustainable development from Germany and Switzerland are being empirically examined with a self-designed fractal method (Fractals: Benoit B. Mandelbrot). The study argues and analyzes consistently along the terms of evolution, system, chaos theory, bifurcation and fractals. The research approach takes place, in this respect, through the scientific research system paradigm, especially the chaos theory as mentioned above. At the same time this is the cross-check of the recommended strategies (Minsch et. al.) which could be implemented by existing istitutions. It is interesting, because the IWÖ/IFOK-study was published in 1998).