The top state machine in this slide shows the states of a mouse or touchpad.
One transition is omitted (maybe intentionally). Even if a mouse is on Out of range state, users still can press the button and probably it does not change the state.
22 Matching Annotations
- Apr 2017
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kixlab.org kixlab.org
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kixlab.org kixlab.org
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Would Node B be drawn? Would Edge A-C be drawn? Would Node C be drawn?
Only some part of the edge A-C will be drawn.
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- Mar 2017
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kixlab.org kixlab.org
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Why do we want to separate this from the user interface?
so whole developing process can be distributed to two groups of programmers(frontend, backend) which have different skillsets.
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kixlab.org kixlab.org
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in Mac OS, an application can be active even if it has no windows on the screen – users who use keyboard shortcuts heavily may make mode errors – in this case, sending a keyboard command to the wrong application
http://farm6.static.flickr.com/5020/5421697380_b9371cdb70_o.png
Menubar is saying that 'Finder' app is currently active while there is no any open window.
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The power law describes a linear curve on a log-log scale of time and number of trials.
log T_n = log T_1 - α log n
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So if you double the number of possible stimuli, a human’s reaction time only increases by a constant.
log(2N) = log2 + logN
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The frequency of the sawtooth carrier wave is dictated by open-loop control, so you can use it to derive your T_m. The frequency of the wave’s envelope, the corrections you had to make to get your scribble back to the lines, is closed-loop control. You can use that to derive your value of T_p + T_c.
It's hard to understand. Could anyone explain more about this?
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kixlab.org kixlab.org
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Required reading: Holtzblatt & Beyer, Contextual Design, Ch. 3, available on KLMS
The material was truly helpful. Could you please upload 'focus' part of 'the four principles of contextual inquiry' too?
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kixlab.org kixlab.org
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)
Missed putting a period.
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kixlab.org kixlab.org
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=
I think it should be >=, implied by εd <= S.
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Cascading submenus are hard to use, because the mouse pointer is constrained to a narrow tunnel in order to get over into the submenu.
Indeed. I'm always having troubles with moving the mouse cursor to submenus without an error.
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Related to efficiency in general (though not to Fitts’s Law) is the idea of a gesture, a particular movement of the mouse (or stylus or finger) that triggers a command
https://www.youtube.com/watch?v=vls3se188NE
nice example here.
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The Macintosh menu bar, positioned at the top of the screen, is faster to use than a Windows menu bar
Really interesting. I didn't feel more than awkward when I first used OS X. There were considerate design thinkings behind the Macintosh UI.
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It’s a technical term with some very negative connotations in the lending world.
LOL. Is it serious advice or just a joke?
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delay.
Parenthesis not closed.
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kixlab.org kixlab.org
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what does that add to the scent of Printers & Other Hardware?)
Maybe mouse is the second popular hardware for setting.
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Why do you think printers were singled out?
I guess printer was the most frequently used hardware among all of hardwares. So explicitly addressing the name 'printer' can help many people get the right route to go.
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When designing an interface that requires the user to type in commands or search keywords, support as many aliases or synonyms as you can
It would be really nice if every searching system operate like google search (ex. natural language processing), but it's quite hard to implement. So we can use a compromised function such as tags.
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What’s wrong with the mapping of this bulleted list with respect to the slide above?
The slide has examples consists of stove burners, car turn signals, another stove burners, realCD, and segway. but the bulleted list is suddenly talking about audio mixer example which is not in the slide.
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kixlab.org kixlab.org
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the three styles
the four styles
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people looked at 540 words for a brief time each, then took a test in which they had to determine which of a pair of words they had seen on that 540-word list.
Why is it classified as 'recognition' test rather than 'recall' test? In the definition, major difference of recognition and recall is the existence of visual cue. But I can't see any visual help in the experiment.
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hypothes.is hypothes.is
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annotating
this is for test
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