Evaluating the utility and usability of an adaptive hypermedia system
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This paper reports the findings of an evaluation of an adaptive multimodal application for reading of rich digital talking books. Results are in accordance with previous studies, indicating no user perceived difference between applications with and without adaptivity. The NASA Task Load Index was also used and showed that users of the adaptive application reported less workload. Results also include a comparison between tasks executed with electronic support and tasks executed with print support, and also what specific features in the interface benefited the most from the use of visual and audio modalities.