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MultiPoint is a speech and pen user interface for building presentations,
implemented as an add-on to Microsoft PowerPointTM.
In this study, we compared users' performance
between building presentations with MultiPoint using speech and pen and with
PowerPoint using keyboard and mouse. We also compared participants' performance
between using Wizard of Oz (WOz) speech recognition and computer speech
recognition. In aggregate, six participants with WOz recognition completed tasks
in about the same time and with about the same number of errors, as they did
using PowerPoint alone. Six participants with computer speech recognition took
twice the time and committed four times as many errors, as they did using PowerPoint.
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A participant using MultiPoint on a tablet computer
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