Focus plus context screens

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Focus plus context screens

• Patrick Baudisch, Nathan Good,and Paul Stewart
• UIST 2001,
• November 11th 2001

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• Hardware
• At least one hi-res display
• At least one larger low-res display
• Software
• scaling of the display content is preserved
• resolution varies

ltbaudisch_at_parc.xerox.comgt
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Contents

• 1. What it is
• 2. How it works
• 3. What it is good for (video)
• 4. Software
• 5. Evaluation and conclusions

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• How to build it?

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Setup
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Seamless integration of displays
a
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No reflections on focus screen
Focus
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• What is it good for?

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• ltShow video heregt

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• How does it work?

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The scaling software

• Display image on two display units of different
  resolution
• Similar to two-headed display
• but display units are overlapping
• and one of them has to be scaled down
• (Related work Flux capacitorDr. Emmett Brown,
  1985)

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Linux/VNC
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Image viewer
mouse fork
focus
ACDsee
.gif
Photo shop
scale
input
context
ACDsee
.gif
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• Evaluation

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focus plus context screen
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Evaluation

• Field study
• 12 professionals, 2 gamers
• Nobody uses overview plus detail
• A list of tasks for the experiments
• 1st exp large static documents
• Task completion 21 and 36 faster
• 2nd exp dynamic dual attention task
• Error rate only 1/3 of two-monitor setup

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What we learned

• We thoughtChip designers need it
• We learnedReal strength is dynamic content
• Have unexpected context information
• Two monitoring tasks at the same time

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Try it out!

• Demo Tuesday 5.15

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• END