This paper introduces a software visualization system that: creates animations of programs without the programmer writing any animation code and provides a window interface that automatically displays program information, explicitly showing the scope and context of its data, and allowing considerable control over animation displays.-This paper introduces a software visualiz ation system that : creates animations of programs without the pro grammer writing any code and provide animation 's a window interface that automatically displa ys program information, explicitly showing the scope and context of its data, and allowing considerable control over animat ion displays.