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Aug
14
comment Speed and accuracy of text entry methods on smart phones?
I've never seen research on Swype. However, comparisons of text entry on mobile devices have been around as long as there have been mobile devices. Check out this paper as a starting point for pulling the thread on this research. MacKenzie has been in this field for years. Check the references in his papers to find other papers you should read.
Aug
14
comment Graphic representation of various data types
Having worked on this problem, I agree with Renat's statement: "it is really hard to invent clear and easy to understand icons" for data types. This is why I voted for this answer. The only potential problem with Alexey's solution is that the letters may change if the UI is localized. At that point, the letters may not be unique across the data types.
Jul
29
answered How does the projection-angle of road arrows change drivers' expectations of the appropriate speed in a curve?
Jul
29
comment How does the projection-angle of road arrows change drivers' expectations of the appropriate speed in a curve?
Part III Google 'pavement marking' legibility OR readability and you will find detailed research reports on this topic along with guidelines like the one referenced in the previous comment.
Jul
29
comment How does the projection-angle of road arrows change drivers' expectations of the appropriate speed in a curve?
Part II The pavement marking research results have been codified into guidelines for pavement marking. For example, see section 22.2 in this document. The word SLOW appears in two sizes. The size depends on the speed limit of the road on which the marking appears.
Jul
29
comment How does the projection-angle of road arrows change drivers' expectations of the appropriate speed in a curve?
Part I There are many factors affecting pavement marking legibility and the effect of the marking on driver behavior: vehicle speed, time of day, type of road, type of intersection, driver characteristics, paint type, pavement type, purpose of the marking, color of the paint, etc. A summary of some of TTI's research on this topic.
Jul
17
comment Confusions about applying Hick-Hyman Law in user interface design
This paper provides a nice overview of Hicks-Hyman - much better than Wikipedia. It illuminates Ekapros' answer about 'information gained.'
Jul
17
comment Confusions about applying Hick-Hyman Law in user interface design
Perhaps another UI example would be appropriate for this question. The situation in example 2 is a known exception to the Hick-Hyman law. Exceptions include tasks with a verbal response, a familiar stimulus with a single dominant name, and a large number of practice trials. Although the response in example 2 is manual rather than verbal, the stimulus (your home country) is familiar and you have had a large number of practice trials. See Longstreth et al. (1985) for more information on exceptions.
Jun
27
comment Why is the “Record” icon always round and usually red?
On the tape recorders like the one shown above, the red button was an indicator of the button's function but it was not the only aspect of the design for preventing accidental recording. You had to press Record and Play simultaneously to start recording. If you pressed Record only, the button would return to its regular position.
Jun
27
comment Why is the “Record” icon always round and usually red?
I agree with the association of the red button with the red recording light. You can see this association take place in successive generations of TEAC equipment. Take a look at the Ampex 300 from 1949. The red light on the left is adjacent to the record button immediately to its right. Now look at the TEAC TD-105, made in the 1950s(?). The record light and the button are still adjacent and the record button is red.
May
23
comment Are there any guidelines on the use of speech in interfaces?
This is a fairly broad question because (1) some of the guidelines for the use of speech in a UI will depend on the context of use, e.g., speech interaction in a in-vehicle navigation system will differ from speech in a telephone service, (2) there are many variables to be considered, e.g., the 'talking speed' mentioned above could refer to 'the speed at which the system speaks' or 'the speed at which the user speaks'. Is it possible to narrow the question a bit more. Otherwise, the answer you get might be too generic to be useful.
May
16
answered Low-fidelty vs high-fidelity: Do they elicit different types of reactions?
May
16
answered Interaction model for hierarchical selection
May
11
comment Why F1 is the default help key?
CUA codified the practice but was not the origin of the idea. Given the importance of Lotus 1-2-3 to the adoption of the PC as a business tool, I suspect Lotus' use of F1 for Help influenced IBM's selection of F1 as the standard.
May
9
comment Do users need 3 ways to change sound volume on their computer?
A lesson in how not to implement a master control. Do not put a mute button on a laptop keyboard that will mute all sound from a computer and cannot be reversed via the volume controls in the software. This is how my Lenovo Thinkpad works. I keep my laptop docked most of the time. One day the sound stopped working. I adjusted the software volume controls with no effect. Turns out, I had pressed the hardware mute button the night before when trying to turn off the laptop. The mute and power button are next to each other, both are round, and it was dark.
May
9
comment How can the mode of a car's transmission be made more clear?
For humor only - skip to 2:42 then listen to what he says at 2:58.
May
9
comment How can the mode of a car's transmission be made more clear?
Up vote because of the last sentence.
May
9
comment How can the mode of a car's transmission be made more clear?
@3nafish The Nissan solution to this problem does not rely on providing any new information to the driver. Rather than rely on the driver preventing their own skill-based error, Nissan infers the driver's intent by examining the objects around the vehicle and the vehicle's speed. Nissan does not provide more information to the driver because it will not solve the problem.
May
9
comment How can the mode of a car's transmission be made more clear?
@3nafish The purpose of rephrasing the question was to point out the irrelevance of the answer to the question as a way for finding a solution to the problem. In other words, this question has no practical significance. Experts in this field have decided this question is not relevant. The solution to the problem will be found through other means.
May
9
comment How can the mode of a car's transmission be made more clear?
@3nafish Ouch! A down vote on an answer that wasn't really an answer but rather a comment whose intent was to add information about a possible answer to the question. A bit harsh, IMHO.