Spatial Data Infrastructures and Cultural Landscapes According to the GSDI Cookbook, "the term ‘Spatial Data Infrastructure’ is often used to denote the relevant base collection of technologies, policies and institutional arrangements that facilitate the availability of access to spatial data (figure 1). An SDI provides a basis for spatial data discovery, evaluation and application for users and providers within all levels of government, the commercial sector, the non-profit sector, academia and by citizens in general" (Nebert 2004: 8).