Using Ellimaps to Visualize Business Data in a Local Administration

While software tools for visual analysis of data are nowadays commonly used in private companies or large public administration, they are much less present in small cities. The paper describes an innovative system to visualize data in a mid-sized city aiming to support the optimization of the human resources management. On the basis of recent findings in information visualization, an innovative way to represent hierarchical data has been implemented into this tool. This technique called ellimap use nested ellipses of various sizes to build graphics.