Author:Cooper, Antony K; Coetzee, S; Kourie, DGDate:Apr 2012User-generated content (UGC) in general, and volunteered geographical information (VGI) in particular, are becoming more important as sources for official data bases, such as those used in national spatial data infrastructures (SDIs). Discovering ...Read more
Author:Harvey, F; Iwaniak, A; Coetzee, S; Cooper, Antony KDate:May 2012A spatial data infrastructure (SDI) is an evolutionary concept related to the facilitation and coordination of the exchange and sharing of spatial data and services. Since its initial use, the SDI concept has shifted its focus from data sharing ...Read more