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input techniques

input techniques. a kshay kothari. w hat’s an input device, anyway?. Wikipedia: any peripheral used to provide data and control signals to an information processing system. properties of input devices. Property Sensed Number of Dimensions Indirect vs. Direct Device Acquisition Time Gain

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input techniques

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  1. input techniques akshaykothari

  2. what’s an input device, anyway? • Wikipedia: any peripheral used to provide data and control signals to an information processing system

  3. properties of input devices • Property Sensed • Number of Dimensions • Indirect vs. Direct • Device Acquisition Time • Gain • Other metrics

  4. input device states Out of Range, Tracking, Dragging Tracking, Hover, Left Click, Dragging, Right Click

  5. evaluation of input devices • Fitt’s Law & Hick’s Law • Steering Law and Minimum Jerk Law • Keystroke-Level Model and GOMS Analysis

  6. feedback: response to an input • Proprioceptive and Kinesthetic Feedback • Kinesthetic Correspondence • Snapping Behavior and Active Haptic Feedback

  7. modalities of interaction

  8. input devices • Pointing Devices • Mouse • Joysticks • Indirect Tablets • Touchpads • Touchscreen & Pen-operated Devices • Text Entry • QWERTY keyboard • Mobile text entry • Handwriting Recognition

  9. Mouse

  10. Was the mouse designed opportunistically? Or was the need formulated first followed by the design and choice of technology for implementation?

  11. What is the future of input devices?

  12. what’s an input device, anyway? informing the design of direct-touch tabletops http://www.youtube.com/watch?v=rP5y7yp06n0

  13. usability challenges • Tabletop content orientation • Occlusion and reach • Gestural interaction • Legacy application support • Group interaction techniques • Walk-up and walk-away usage issues

  14. Does a large tabletop provide spatial and perceptual cognitive advantage in helping users accomplish their tasks?

  15. Under what circumstances does this cognitive assistance occur, and when does it break down?

  16. multi-touch systems that I have known and loved – Bill Buxton

  17. “It took 30 years for the mouse to become ubiquitous – by that measure, multi-touch technologies have 3 years to go before they fall behind.” • “Everything is best for something and worst for something else” • “Input is still primitive, and wide open for improvement.” • “More is less or less is more” • “There is no free lunch”

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