Sustainable development represents a shared aspiration, the priority of which is widely recognised worldwide by scientists, decision-makers and public opinion alike. It became a topic for reflection and an endeavour for initiatives taken by local communities, businesses, regions, states and international organisations. The subject of sustainability is interdisciplinary and involves a complex thinking that recently led to the emergence of a new discipline, namely sustainability science. The systems approach (systemics) is deemed to offer a set of concepts and methods that enable the elaboration of visions, as well as the steering of the process of sustainable development in real contexts. Within this framework, the main strength of this appr...