"Planningconcepts and methods are designed to manage the spatial organisation and qualities of the real world. They are derived from implicit or explicit perceptions of "space", often limited to a specific aspect or quality. During their existence, institutionalisation and application however, their users tend to forget that their concept is only a limited model of the real world. Than the concept starts to replace the real world and its complexities and multiple qualities. This is a widespread phenomenon, that explains much of the clashes between disciplines and the environmental and other quality problems, that are related to spatial planning and management."