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Auflistung nach Autor:in "Ehrenstrasser, Lisa"

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  • Zeitschriftenartikel
    Multimodality in Design of Tangible Systems
    (i-com: Vol. 11, No. 3, 2012) Tellioğlu, Hilda; Ehrenstrasser, Lisa; Spreicer, Wolfgang
    In this paper we present how we applied and analyzed multimodality in design of tangible communication systems for elderly. First we define six categories of multimodality (aural, visual, tactile, gesture, posture, and space), which we integrate in our design processes and design artifacts. We illustrate how user interaction has been established, especially when multimodality is central to our approach. We also discuss multimodal design in context of user experiences, user-centered design, and participatory design approaches. We show the added value and change of focus through multimodality in design processes. We analyze our findings before we conclude our paper.
  • Konferenzbeitrag
    Personal Interaction through Individual Artifacts
    (Mensch & Computer 2012 – Workshopband: interaktiv informiert – allgegenwärtig und allumfassend!?, 2012) Ehrenstrasser, Lisa; Spreicer, Wolfgang
    Understanding and executing interactions with communication interfaces can be a bitter process, especially with basic or none technology knowledge. The paper gives insights in developing a tangible interface called kommTUi, a single user communication interface triggering interaction through a mixture of pre-produced, generic tokens and personal artifacts both serving as objects for defined interactions. We explore the importance of individualising tokens and personal relations between objects and users for interaction design and present findings from participatory design workshops.
  • Konferenzbeitrag
    Tokens: Generic or Personal? Basic design decisions for tangible objects
    (Workshop-Proceedings der Tagung Mensch & Computer 2011. überMEDIEN|ÜBERmorgen, 2011) Ehrenstrasser, Lisa; Spreicer, Wolfgang
    One of the key concepts of Tangible User Interfaces (TUIs), as described in Tangible Bits (Ishii & Ullmer 1997), is the linkage of digital information with physical objects. Following the “token and constraints” approach by (Ullmer et al. 2005) we refer to these objects as tokens. The way users interact with the underlying system through tokens plays a decisive role in the design of TUIs and needs to be defined early in the design process. However, in this position paper we do not elaborate on tangible objects as containers for digital information, enabling user interaction and manipulation. We concentrate on one essential question arising during the design of tokens: What kind of tokens to choose and design - generic or personal tokens? In this regard, we distinct between individual, personalized artifacts and neutral objects and show the varying personal relations of users to tokens. We illustrate our statements with two interfaces (ColorTable and kommTUi), both with different complexities and requirements.