This book is based on the premise that research necessary to advance the utility of geographic informatior. systems must extend far beyond concerns with technical issues. The search for formalisms and generalizable principles relative to the behavior and needs of individuals, organizations and institutions is just as important in enabling optimal use of geographic information innovations. This book consists of papers prepared by participants in the NATO Advanced Research Workshop (ARW) on "Modeling the Diffusion and Use of Geographic Information Technologies. " The workshop was held...

In recent years the development of spatial referencing techniques in com- puter-based information systems has enormously increased the opportuni- ties that exist for the treatment and presentation of both point and interaction data. The extent of this increase has drawn attention to the need for special aggregation and clustering procedures to be developed which enable data to be grouped in an efficient way for analytical pur- poses with a minimum loss of detail. In the case of interaction data, economy of representation is particularly important as the analysis is further complicated by the...