Using Treemaps to Visualize the Analytic Hierarchy Process
Authors: Asahi, Toshiyuki; Turo, David; Shneiderman, Ben
Journal: Information Systems Research (1995)
DOI: 10.1287/isre.6.4.357
<jats:p> Treemaps, a visualization method for large hierarchical data spaces, are used to augment the capabilities of the Analytic Hierarchy Process (AHP) for decision-making. Two direct manipulation tools, presented metaphorically as a “pump” and a “hook,” were developed and applied to the treemap to support AHP sensitivity analysis. Users can change the importance of criteria dynamically on the two-dimensional treemap and immediately see the impact on the outcome of the decision. This fluid process dramatically speeds up exploration and provides a better understanding of the relative impact of the component criteria. A usability study with six subjects using a prototype AHP application showed that treemap representation was acceptable from a visualization and data operation standpoint. </jats:p>