BASIC RESEARCH: Meeting Expectations: A Review of GIS Performance Issues, B.M. Gittings, T.M. Sloan, R.G. Healey, S. Dowers and T.C. Waugh; Simulating the Effects of Error in GIS, C. Brunsdon and S. Openshaw; Towards a Generalization Machine to Minimize Generalization Effects within a GIS, E. Joao, G. Herbert, D.W. Rhind, S. Openshaw, and J. Raper Datum; Transformations and Data Integration in a GIS Environment, A.H. Dodson and R.H. Haines-Young; The Object-Based Paradigm for a Geographical Database System: Modelling, Design and Implementation Issues; M.F. Worboys, K.T. Mason and B.R.P. Dawson; Spatio-Temporal GIS Techniques for Environmental Modelling, M.A. O'Conaill, D.C. Mason and S.M.B. Bell; Development of a Generic Spatial Language Interface for GIS, J. Raper and M. Bundock. ENVIRONMENTAL APPLICATIONS OF GIS: Analytical Tools for Monitoring Urban Areas, M.J. Barnsley, S.L. Barr, A. Hamid, J.P.A.L. Muller, G.J. Sadler and J.W. Shepherd; The Application of Geographical Information Systems to the Monitoring and Modelling of Land Cover and Use in the United Kingdom, R.W. Gooding, D.C. Mason, J.J. Settle, N. Veitch and B.K. Wyatt; GIS and Distributed Hydrological Models, R. Romanowicz, K. Beven and R. Moore; Automated Derivation of Stream-Channel Networks and Selected Catchment Characteristics from Digital Elevation Models. J. Hogg, J.E. McCormack, S.A. Roberts, M.N. Gahegan and B.S. Hoyle. ECONOMIC AND PLANNING APPLICATIONS OF GIS: Mapping Natural Hazards with Spatial Modelling Systems, G. Wadge, A. Wislocki, E.J. Pearson and J.B. Whittow; An Evaluation of GIS as an Aid to the Planning of Proposed Developments in Rural Areas, D.A. Davidson, P.H. Selman and A.I. Watson; Property Based GIS: Data Supply and Conflict, D.J. Fairbairn; The Impact of GIS on Local Government in Great Britain, I. Masser and H. Campbell; A Land and Economic Development Information System for the East Thames Corridor, A. Church, M. Frost, S. John, A. Macmillan and J.W. Shepherd; Intelligent, Interactive and Analysis-Based GIS: Principles and Applications, M. Clarke, J. Chesworth, J. Harmer, S. Macgill, A. McDonald, Y.L. Sui and A. Wilson.