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  • 1.
    Hallnäs, Lars
    et al.
    RISE, Swedish ICT, Interactive Institute.
    Redström, Johan
    RISE, Swedish ICT, Interactive Institute.
    From Use to Presence; On the Expressions and Aesthetics of Everyday Computational Things2002In: ACM Transactions on Computer-Human Interaction, ISSN 1073-0516, E-ISSN 1557-7325, Vol. 9Article in journal (Refereed)
    Abstract [en]

    The coming ubiquity of computational things urges us to consider what it means for something to be present in someone's life, in contrast to being just used for something. "Use" and "presence" represent two perspectives on what a thing is. While "use" refers to a general description of a thing in terms of what it is used for, "presence" refers to existential definitions of a thing based on how we invite and accept it as a part of our lifeworld. Searching for a basis on which these existential definitions are formed, we argue that the expressions of things are central for accepting them as present in our lives. We introduce the notion of an expressional, referring to a thing designed to be the bearer of certain expressions, just as an appliance is designed to be the bearer of a certain functionality. Aesthetics, as a logic of expressions, can provide a proper foundation for design for presence. We discuss the expressiveness of computational things as depending both on time structures and space structures. An aesthetical leitmotif for the design of computational things---a leitmotif that may be used to guide a normative design philosophy, or a design style---is described. Finally, we describe a practical example of what designing a mobile phone as an "expressional" might be like.

  • 2.
    Redström, Johan
    RISE, Swedish ICT, Interactive Institute.
    Tangled interaction: on the expressiveness of tangible user interfaces2008In: ACM Transactions on Computer-Human Interaction, ISSN 1073-0516, E-ISSN 1557-7325, Vol. 15, no 4Article in journal (Refereed)
    Abstract [en]

    This is an analysis and exploration of a basic aesthetic issue in interaction design: how an ambition to design strong and persistent relations between appearance and functionality, evident in approaches such as tangible user interfaces, in crucial ways in which conflicts with the ways miniaturization of technology have changed the relation between the object's surface and its internal complexity. To further investigate this issue, four conceptual design experiments are presented exploring the expressiveness and aesthetic potential of overloading the object's surface by adding several layers of interaction, thus creating a kind of tangled interaction.

  • 3.
    Svensson, Martin
    et al.
    RISE, Swedish ICT, SICS.
    Höök, Kristina
    RISE, Swedish ICT, SICS.
    Cöster, Rickard
    RISE, Swedish ICT, SICS.
    Designing and Evaluating Kalas: a Social Navigation System for Food Recipes2005In: ACM Transactions on Computer-Human Interaction, ISSN 1073-0516, E-ISSN 1557-7325, Vol. 12, no 3Article in journal (Refereed)
1 - 3 of 3
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