The usefulness of graphs for visualisation has
often been reported when readers have to learn from texts.
Educators have emphasised how important it is that students
learn how to interpret graphs and diagrams as well as to produce
them from texts. Graphs and diagrams help us thinking and
In the project we investigate the comprehension
of hierarchical graphs. Everyday examples of hierarchical
graphs include, among others, the structure of computer file
systems, family trees, preference trees etc.
The objectives of the project are to identify
psychological processes underlying comprehension, and to test
a model of graph comprehension. We will do so by using state-of-the-art
techniques. The results of the project will provide design
criteria for how to draw hierarchical graphs to optimise comprehension