Derived from presentations made at the third annual UK National Conference on GIS Research, this work consists of contributions by leading experts in: geography, mathematics, computing science, surveying, archaeology, planning and medicine.Part 1 Data issues: multi-resolution modelling in Geographical Information Systems; a generic large scale spatial data model for surveyors - changing practices and processes; balancing rights in data - elementary?; georeferencing people and places - a comparison of detailed datasets; the assessment of catchment environmental characteristics and their uncertainty. Part 2 Computational support: version management for GIS in a distributed environment; programming spatial databases - a database object-oriented approach; spatial clustering with a genetic algorithm; applying efficient techniques for finding nearest neighbours in GIS applications; computational techniques for determining three dimensional topology. Part 3 Spatial analysis: user-centred intelligent spatial analyis of point data; developing an exploratory spatial analysis system in XLisp-Stat. Part 4 Visualization: exploring urban development dynamics through visualization and animation; scale-based characterization of Digital Elevation Models; dynamic maps for spatial science - a unified approach to cartographic visualization. Part 5 Applications: precision farming in the office - investigating the development of a GIS-based field information system; modelling air quality and the effects on health in a GIS framework; land-user intentions and land-use modelling.