Leung, YeeYeeLeungProf. LEUNG Kwong Sak2023-03-302023-03-301993International Journal of Geographical Information Systems, 1993, vol. 7 (3), pp. 201 - 2131365881613658824http://hdl.handle.net/20.500.11861/7707Employing the expert system shell discussed in part 1 of this two-part article, three simple geographical expert systems are constructed as didactic examples. The first deals with land-type classification with remotely-sensed data, the second with climatic classifications with regular data files, and the third involves discussions on building DTM-related expert systems. All are rule-based expert systems easily built from the shell. It is apparent that the shell provides a powerful software environment for developing knowledge-based GIS. Directions for further research are also outlined. © 1993 Taylor & Francis Group, LLC.enPeer Reviewed Journal Article10.1080/02693799308901952