Each group met separately to discuss some of the issues raised but they were also encouraged to mix so that a variety of perspectives could be aired. Group leaders reported in the plenary sessions the results of the discussion groups. Given the wide range of issues discussed during the three days of the meeting, it is not possible to give a full account in this short document. However, the following sections give a flavour of the main points, often in a bullet format. Given the very large number of possible combinations, it is clear that there is an urgent need to identify different solutions for different categories.
Scale is the great boundary maker in geography.
The scale of the object is in another order of magnitude than the scale of the boundary. If the scales are in the same order of magnitude, then the object is perceived as more fuzzy than if the scales are further apart. Operations on the objects determine the sharpness of the boundary. Boundary' is not the attribute of an object but the difference between the perceiving person and the 'object' perceived. Objects that have a spatial representation are different from those that have not.