ist 331 class 6 [5 min.] frank ritter, 11 sept 14 computers/phones still off questions? fill out two...
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Ch 1 ABCS Anthropometrics Behavior Cognitive Social These are everywhere, even on RedditTRANSCRIPT
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Ist 331 class 6 [5 min.]frank ritter, 11 sept 14
• Computers/phones still off
• Questions?
• Fill out two surveys
• Project 1 abstracts in [15 min.]
• ABCS1, 2, 3 [20 min.]
• IS lab [20 min.]
• Learning lab
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Project 1 [15 min.]
• Handin• Questions,• Concerns, • Things to share?
![Page 3: Ist 331 class 6 [5 min.] frank ritter, 11 sept 14 Computers/phones still off Questions? Fill out two surveys Project 1 abstracts in [15 min.] ABCS1, 2,](https://reader038.vdocuments.site/reader038/viewer/2022100514/5a4d1b707f8b9ab0599b4f20/html5/thumbnails/3.jpg)
Ch 1 ABCS
• Anthropometrics• Behavior• Cognitive• Social
These are everywhere, even on Reddit
![Page 4: Ist 331 class 6 [5 min.] frank ritter, 11 sept 14 Computers/phones still off Questions? Fill out two surveys Project 1 abstracts in [15 min.] ABCS1, 2,](https://reader038.vdocuments.site/reader038/viewer/2022100514/5a4d1b707f8b9ab0599b4f20/html5/thumbnails/4.jpg)
Chapter 4
1. Posture
2. Haptic and kinesthetic and the other 5 senses
3. Fitts law
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Ch 3 Fitts Law [10 min.]
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Fitts Law
• Time to move =
– Constant + rate * ID
– 150 + 100 log2(2d/w)
– 70 log2(d/w + 0.5)
• Implications
– Make d short
– Make W large
– W on edge is infinite
– Make d 0
– Make constants small (e.g., pointing finger vs. complex joystick; clean mouse vs. rat)
– Move to keystroke
d
w
target
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Typing• 10-80 wpm• Faster with practice• Differ by letter, pair, word• 3% errors (hmm), but 30% time
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Lab 1 [20 min.]
• Questions,• Concerns, • Things to share?
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Lab 2 [5 min.]
• Overview of lab• Pick your task carefully
– About 1 min. is ok, 30 sec a bit better, 10 s too fast, 2 min. too slow (typically, for lab, not for project)