1St International Conference on Geographical Information Systems Theory, Applications and Management (Gistam), Date: APR 28-30, 2015, Location: Barcelona, SPAIN, Patrocinadores: Inst Syst & Technologies Informat, Control & Commun, ACM SIGSPATIAL, Global Spatial Data Infrastructure Assoc, Canadian Inst Geomat & Cartog, Geol Inst Catalonia, Int Soc Photogrammetry & Remote Sensing, IEEE Geoscience & Remote Sensing Soc