Human Interfaces - created from Mind Map

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Human Computer Interaction (HCI)

Touch Panels

Display technologies - LCD

Perceptual Process (Input)

Cognitive Process (Process)

Motor Process (Output)

Fixations

Saccades

Rauding rate

info absorbed in eyes (60ms)

quick movement between eyes (30ms)

Raud: read with understanding

30 letters/s

Hick Hyman Law

Fitt Law

- Predicts Motor Time (MT)

- Time taken to point to object

point mouse cursor to icon

FORMULA

Larger D => Larger MT

Larger W => Smaller MT

Application of Fitt Law

Far but big targets may be easier to reach than near but small target

Edges of your screen are very fast to reach

Corners are even faster

Pop-up menu is fast

Menu Bar in Mac OS/Linux. Not Windows

Right click

advanced input devices that are mounted on display systems

Many Different Technologies

Resistive

Capacitive

When there is a touch, resistance changes and is measured to locate the touch