Containing 31 papers collected in five chapters, this book deals with different fields of application and the problems of modelling and organising data in structures, as well as the processing techniques of GIS data for queries to the system and the so-called Dynamic GIS. The authors cover data acquisition with low cost DGPS for road surveys, vehicle navigation systems, and robust statistical techniques applied to pre-processing, analysis and testing. They report on the testing and calibration of different scanners for GIS data acquisition as well as some original approaches to the automatic DTM generation for cartographic and close range applications. Finally, applications to the environmental monitoring and the use of different kinds of geodetic data in multipurpose regional GIS are shown.