... design, Proceedings of GIS/LIS 97 , pp. 316–21.BLOM, T. and LÖYTÖNEN, M., 199 3, Research launch system to monitor epidemics in Finland.GIS Europe, 2(5), 27 9. EMERGING TECHNOLOGIES 99 and design ... temporal database design (Al-Taha, Snodgrass and Soo, 199 4; Snodgrass, Al-Taha and Soo, 199 3; Tansel et al., 199 3; Soo, 199 1) has addressed issues related to version management aspects (time stamping, ... (Armenhakis, 199 3; Egenhofer and Al-Taha, 199 2; Svensson and Huang, 199 1).Only recently has there been an increase in research efforts for combining spatial and temporal database developments. One of the...