Audiograf: a diagram-reader for the blind
Assets '96 Proceedings of the second annual ACM conference on Assistive technologies
External cognition: how do graphical representations work?
International Journal of Human-Computer Studies
A generic approach for augmenting tactile diagrams with spatial non-speech sounds
CHI '02 Extended Abstracts on Human Factors in Computing Systems
Effects of Navigation and Position on Task When Presenting Diagrams
DIAGRAMS '02 Proceedings of the Second International Conference on Diagrammatic Representation and Inference
IV '03 Proceedings of the Seventh International Conference on Information Visualization
Evaluation of a non-visual molecule browser
Assets '04 Proceedings of the 6th international ACM SIGACCESS conference on Computers and accessibility
PLUMB: displaying graphs to the blind using an active auditory interface
Proceedings of the 7th international ACM SIGACCESS conference on Computers and accessibility
Constructing relational diagrams in audio: the multiple perspective hierarchical approach
Proceedings of the 10th international ACM SIGACCESS conference on Computers and accessibility
Comparing interaction strategies for constructing diagrams in an audio-only interface
BCS-HCI '08 Proceedings of the 22nd British HCI Group Annual Conference on People and Computers: Culture, Creativity, Interaction - Volume 2
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This paper describes an approach to support non-visual exploration of graphically represented information. We used a hierarchical structure to organize the information encoded in a relational diagram and designed two alternative audio-only interfaces for presenting the hierarchy, each employing different levels of verbosity. We report on an experimental study that assessed the viability of our proposed approach as well as the efficiency and learnability of each interface. Our results show that the relational information encoded in a diagram could be non-visually navigated and explored through a hierarchy, and that substituting verbal descriptions of parts of such information with nonverbal sounds significantly improve performance without compromising comprehension.