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Title:
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INFORMATION EQUIVALENCE: A THEORETICAL AND PRACTICAL ISSUE OF MULTI-MODAL INTERACTION |
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Author(s):
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Sacha Helfenstein , Pertti Saariluoma , Jari Veijalainen |
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ISBN:
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978-972-8924-59-1 |
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Editors:
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Katherine Blashki |
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Year:
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2008 |
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Edition:
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Single |
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Keywords:
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Information equivalence, presentation modalities, multi-modal interfaces, interaction design |
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Type:
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Short Paper |
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First Page:
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229 |
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Last Page:
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233 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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Information equivalence is introduced as core, multifaceted concept when studying the conditions and effects of
presenting information contents in various modes on a mobile device. The paper emphasizes the user psychological
perspective opposite a technical one, i.e., the extent to which user information processing and performance is equivalent
across distinct modes of presenting the same information contents carried in a bit string. Equivalence was tested for
visual-textual, auditory, and visual-pictorial mediation options, using immediate recall performance measures. Counter to
intuition, no significant overall effects of presentation mode on learning the mediated contents were revealed. In contrast,
content type of the messages strongly influenced recall, with performance being inferior for abstract compared to
concrete contents. Whereas there was no interaction effect between content type and presentation mode, time-dependency
related to the contents was found, indicating that messages with abstract contents may be less suitable for presentation in
audio- or video-formats. The relevance of this type of research, its results, and the development of novel domain-bridging
concepts for design and for interdisciplinary approaches to human device interaction in general are discussed. |
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