This Topic deals with important application models, which should be chosen with relation to the course (geographically / related to the background of the course) INSPIRE should be treated in any case. In detail: - Overview on important application models relevant for the course, e.g. from topography or environment in the country - Repetition of the principles of Spatial data infrastructures - Overview on the INSPIRE initiative and the goals related - The INSPIRE data model - The architecture of INSPIRE and the necessary services - Domains / data relevant for INSPIRE