Palmtop Interface Design

1
Palmtop Interface Design

• Karly Blanchette
• Matt Ottney
• Steve Zinn

2
Overview

• Palmtop Devices
• What is HCI?
• HCI Long Term Goal
• Problems
• Challenges
• iPod Thumb
• Eye Strain
• DateLens
• Peepholes
• Questions

3
Palmtop Devices

• iPAQ
• Large screen
• Bluetooth enabled
• Wireless card
• USB 2.0

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Palmtop Devices

• iPOD
• Circle wheel for navigation
• 2.5 screen
• Up to 60 GB of storage

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Palmtop Devices

• Blackberry
• Keyboard functionality
• Uses a track wheel
• Used as a cell phone
• Smaller screen thaniPAQ
• Bluetooth
• Lawsuit!

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What is HCI?

• Human computer interaction
• Disciple concerned with the design, evaluation,
  and implementation of interactive computing
  systems for human use and the study of major
  phenomena surrounding them
• User experience
• Key to end product acceptance

http//en.wikipedia.org/wiki/Human_computer_intera
ction
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Long Term Goal

• Design computers that can be exploited to their
  fullest potential as instruments that
• Enhance human creativity
• Liberate the human mind
• Improve communication and cooperation between
  humans

http//en.wikipedia.org/wiki/Human_computer_intera
ction
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Problem

• Giving users access to powerful computing
  services through small interfaces
• Tiny visual displays
• Poor audio
• Limited input technologies

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Challenges

• Designing for mobility
• Designing for a widespread population
• Designing for limited input/output facilities
• Designing for incomplete varying context
  information
• Designing for users multitasking at levels
  unfamiliar to most desktop users

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iPod Thumb

• Repetitive Stress Injury (RSI)
• Caused by repetitive hand movements when users
  wheel through their list of songs
• Causes inflammation of the thumb or fingers
• Spread to the elbow neck
• Blackberry thumb Playstation thumb

http//news.scotsman.com/health.cfm?id2230532005
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Eye Strain

• More than 50 of computer users experience
• Eye strain
• Headaches
• Blurred vision
• Other visual symptoms
• Heavy computer users are at risk for glaucoma

http//www.visionworksusa.com/computereyestrain.ht
m
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Workstation Recommendations

• Computer screen slightly below eye level
• Adjust screen brightness and contrast for maximum
  comfort
• Workstation light should provide a 103 ratio
• Screen characters 10 times brighter than screen
  background
• Room illumination 3 times brighter than screen
  background

http//www.visionworksusa.com/computereyestrain.ht
m
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Workstation Recommendations

• Face an open space beyond the computer
• Take a break for 10-15 minutes every 1-2 hours
• Try not to face towards a window or bright light
  sources
• Try to avoid glaring for the computer

http//www.visionworksusa.com/computereyestrain.ht
m
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Eye Exercises

• Near-far focus improves eye flexibility
• Hydrotherapy
• Head rolls relaxes neck, head, and face muscles
  and reduces shoulder tension

http//www.visionworksusa.com/computereyestrain.ht
m
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DateLens

• Scalable calendar interface
• Uses a fisheye representation of dates coupled
  with
• Compact overviews
• User control over the visible time period
• Integrated search

http//www.cs.umd.edu/hcil/datelens/
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DateLens
Focused in on one day in a month view
Single day view after maximizing
http//www.cs.umd.edu/hcil/datelens/
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DateLens

• Enables users to
• See overviews
• Easily navigate the calendar structure
• Discover patterns outliners
• DateLens Example

http//www.windsorinterfaces.com/datelens.shtml
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Peephole Displays

• Disadvantage of small handheld devices
• Users inability to view and interact with a large
  amount of information at once
• Handheld knows of an image much larger than the
  screen display and you move the handheld around
  to pan and zoom

http//www.trnmag.com/Stories/2003/022603/Handheld
s_gain_space_022603.html
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Peephole Displays

• Turns small screen of a handheld computer into
  a keyhole
• 5 years
• Peephole Video

http//www.trnmag.com/Stories/2003/022603/Handheld
s_gain_space_022603.html
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Review

• Palmtop Devices
• What is HCI?
• HCI Long Term Goal
• Problems
• Challenges
• Ipod Thumb
• Eye Strain
• DateLens
• Peephole Displays

21
Questions?