A GIS is developed as a comprehensive suport system to deal with vibration problems and to plan the campus at Nagoya University. Not only the analysis of each database but also an overall analysis such as spatial relationship and the dependence among data sets can be performed efficiently with this system. The system is coded with Tcl/Tk, a freeware with which GUI environment can be constructed easily, and C-language, for which a large number of library collections is available. As the result, the GIS come to be inexpensive and database come to be visual.
