Humancentred design of input and output devices

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Human-centred design of input and output devices
Margot Brereton PhD Senior Lecturer School of
ITEE University of Queensland OZeCulture
2003
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Gestural interaction design issues

• Allow people to maintain natural social
  interactions in physical space
• Free us from sedentary postures,
• Let us use our bodies,
• Allow physical expression
• Not effect unintended operations
• Demand little cognitive attention, be easily
  remembered,
• Be easily detected and recognised

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Domains of Study

• Video Repair Workshop
• Dentist
• Experimental Biologists Lab
• PDA and Mobile Phone Use
• CityCat Ferry Operators
• Flowmeter Assembly Station

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Video card game
Buur and Soendergaard, Video Card Game an
augmented environment for user centred design
discussions pp63-69 DARE 2000
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Gestural Themes Gestures as Placeholders
Summary Description Physical, mental or
temporal placeholders. Characterised by being
temporally extended rather than short. They range
from pointing to identify a single object to
using several fingers to hold attention to and
compare several objects. Fingers are seen to
spatially hone in on or seek an information
object. Example Descriptors Interpreting
and comparing hands remembering focussing and
finding Design ImplicationsMoving from
procedural selection to increased spatial
visualisation and complex selection.
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Preparatory Gestures
Summary Description used as a way of preparing
ourselves to undertake a task. These tasks are
usually ones that require being done right first
time, or a high degree of motor coordination.
These gestures often rehearse the action to come.
Example Descriptors Commanding directing
atomic gesturesuni-directional gestures Design
Implications use to signal that a task is about
to happen Use to switch modes Issue -
distinguishing preparatory from actual task
gestures
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Interaction Design at the Dentist
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Participatory Design
Margot Brereton