ABSTRACT
Since the beginning of the 1990s, the notion of spatial data infrastructure (SDI) has inspired different organizations to share geospatial data and achieve seamless integration. After nearly two decades, incidentally overlapping with the Internet age, this vision has gained global acceptance (Homburg and Georgiadou 2009; Masser 2010) and is con’rmed by the growing participation in the Global SDI Association’s conferences. However, the meaning of SDI in terms of implementation and use has become more fragmented. In spite of a general understanding of SDIs as ways to facilitate access to and use of geospatial data, it is dif’cult to ’nd wide agreement on a more precise de’nition of SDI (Grus, Crompvoets, and Bregt 2010).
