Friday, May 21, 2010

Pros and Cons of Gestural User Interfaces

Pasta&Vinegar’ blog has a summary of pros and cons of gestural interfaces:

  • Natural Interaction
  • Direct Interaction
  • Terse and Powerful Interaction
  • Fatigue
  • Non Self-Revealing
  • Immersion Syndrome:
  • Segmentation of Physical Actions
Immersion syndrome refers to the inadvertent or unintended triggering of device operations. Capacitive touch screens often suffer from this problem.

Segmentation of physical actions was not a serious problem in the era of single-touch touch screens. In the period, there were a small number of gestures and gesture themselves are simple and easy to remember such as tap, double-tap. As time goes by, interfaces now provide so many natural multi-touch gestures. It's a source of headaches for developers and users. Users have to remember gesture vocabularies and developers have to provide a reliable gesture recognition algorithm that robustly differentiates many gestures in real-time.

Link: Lift Seminar @ Imaginove about gestural interfaces via Touch Usability


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