There is a range of GIS implementation strategies that have been adopted in developed countries. Three main steps of planning, analysis and implementation are of importance in GIS implementation (Korte, 1994). The diffusion of GIS in an organization has been extensively discussed (Campbell and Masser, 1995) and the main phases established by the NCGIA (1990). The adoption of new spatial information technologies in developing countries should also be considered in the context of these main steps and approaches. However these approaches should be modified by taking into account the following factor which can impede the adoption of spatial information