Non-knowledge and the Unexpected in Planning: An Experimentation Account

In previous research stages we have reflected on how uncertainty and the unknown are elements that one can’t avoid dealing with during the territorial and environmental planning process. Our lives (in our individual and private choices) and our plans for a city or a territory have to cope with unexpected events, uncertainties, and often with unwanted consequences of our own decisions. We have explored literature andmethods and took the first steps toward applied ontologies as a useful conceptual tool for managing non-knowledge aspects affecting decisions in planning. In the present step of our research, we describe an activity which was carried out with the students of the Regional planning program in Polytechnic University of Bari for two consecutive years.