The book contains 31 papers on different fields of application and the problems of modelling and organizing data in structures, the processing techniques of GIS data for queries to the system and the so-called Dynamic GIS have been reported in detail. A final paper on Computer Graphics principles is included. Its contents can be ideally collected in five chapters, in the first one some experiences on data acquisition with low cost DGPS for road survey and overview on Vehicle Navigation Systems (VNS) are shown. The second on "GIS data acquisition and evaluationa collects a sort of papers treating robust statistical techniques applied to pre-processing, analysis and testing for different kinds of GIS data. Within the topic on "image acquisition and preprocessinga in particular some experiences on test and calibration of different scanners for GIS data acquisition are reported as well as some original approaches to the automatic DTM generation for cartographic and close range applications. Finally, some applications to the environmental monitoring and to the use of different kinds of geodetic data in multipurpose regional GIS, together with some examples of the applicability of multimedia technology to architecture and civil engineering is shown.