Deborah A. Vastola and Ellen L. Walker We describe a tool which
was developed as a Masters project to help students learn the
concepts of reasoning with uncertainty. While the initial
implementation has focused on Dempster-Shafer theory, the tool
is designed so that it can be expanded to other models of
uncertain reasoning. The tool uses interactive graphical
representations, together with animation and color, to convey
the principles of reasoning with uncertainty. It runs on the
Unix platform under the X-window system and uses the SUIT
toolkit (Conway & Pausch & Passarella 1992). A demonstration of
the tool will be included with the presentation of this paper.