Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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Regarding the physical/digital seam in design for intuitive interaction

2009 , Israel, J.H. , Hurtienne, J.

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Image schemas and their metaphorical extensions: Intuitive patterns for tangible interaction

2007 , Hurtienne, J. , Israel, J.H.

One of the goals of tangible interaction is to build more intuitive interfaces. This paper gives a definition of intuitivity and presents a continuum of knowledge serving as a classification for intuitive interaction. Against the background of the continuum recent taxonomies for tangible interaction are reviewed. A new approach for classifying tangible interaction will be presented: image schemas and their metaphorical extensions. Motivated by linguistic studies of meaning this taxonomy is able to overcome some limitations of previous approaches. The taxonomy is illustrated with examples of using image schemas and their metaphorical extensions in potential TUI applications. A more complex example, the Tangible Memories Box, shows how our taxonomy and earlier approaches may complement each other.

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On intuitive use, physicality and tangible user interfaces

2009 , Israel, J.H. , Hurtienne, J. , Pohlmeyer, A.E. , Mohs, C. , Kindsmuller, M.C. , Naumann, A.

>>Intuitive to use<< is so often assigned to tangible user interfaces (TUIs) and physical interaction, for example, in conference lectures, informal communication and in scientific publications, that it seems obvious that physicality evokes intuitive use. However, on closer inspection the topic becomes less obvious. It appears that the use of the term intuitive are diverse and a common definition is still missing; this is true in general for the field HCI but it is particularly true for the fields physicality and tangible interaction. Our aim is to review formerly separated ideas on intuitive use, physicality and TUIs that were partly included in past publications, and to investigate further aspects, which enable or facilitate intuitive use, namely image schemas and familiarity. As interac tion has an impact on the overall product experience, we also discuss whether intuitive use influences the users aesthetic judgements of such products. The paper concludes by underpinning the suitability of tangible interfaces to evoke intuitive use and by calling on taking the concept of intuitive use of user interfaces further for theoretical assessment and development of tangible interfaces.

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Cooking up real world business applications combining physicality, digitality, and image schemas

2008 , Hurtienne, J. , Israel, J.H. , Weber, K.

Tangible interaction research has opened up new ways to interact with computers and extended our imagination of what is possible with digital systems. However, research on tangible user interfaces (TUI) seems to have lost sight of the everyday situation of the majority of people who still work with standard computer systems. This paper investigates a design process for applying TUI in a GUI dominated domain while preserving the functionality of the traditional systems. We exemplify a user centered design process using (1) image schemas as a meta-language for analysis and design and (2) a systematic function allocation of digital and physical user interface elements. We demonstrate this process in the context of the redesign of an invoice verification and posting system of a German beverage company.

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