“…SDI assessments have also been done according to geographic areas. Others according to SDI domain, for example, coastal zone, wetlands, disaster management (Coetzee and Wolff-Piggott, 2015;Idrees, 2015;Okuku et al, 2014;Makanga & Smit, 2010;Harvey et al, 2012;Mansourian et al, 2006;Georgiadou et al, 2005;Rajabifard, 2003;Mapping Science Committee, 1993).…”