Table 2.1 Summary of content category research 33

Table 3.1 National digital databases used in this study 47

Table 4.1 Generalisation of vegetation classes 121

Table 4.2 Generalisation of naturalness classes 122

Table 4.3 Generalisation of water classes 123

Table 5.1 Summary of past landform classifications 180

Table 5.2 Comparison between Hammond's (1964) manual classification process and Dikau et al.'s (1991) automatic process 181

Table 5.3 Dikau et al.'s (1991) process for automating Hammond's landform classification 182

Table 5.4 Dikau et al.'s (1991) landform classes 183

Table 5.5 Generalisation of landform classes 184