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May
7
comment Right-Click menu awareness on Web Application
@KoenLagevenn & Charles Boyung - My experience with enterprise web applications suggests you are both wrong!!! ;) Starting around 2003 or so, participants in our usability tests of web applications started opening the context menu to search for functionality before looking anywhere else in the application. We hypothesized this behavior had less to do with (1) experience with browser context menus, or (2) overall system expertise. Rather, the applications were similar enough to desktop applications that the presence of functions in a context menu was assumed.
May
7
comment Timer for undos (aka ctrl + z for pointing devices)
Does the timer control the message indicating the availability of an Undo feature or does the timer control the availability of Undo? The Gmail example conflates the presence of the message with the availability of the function.
May
6
comment Is there any difference in element minimal sizes on 10 and 24 inch touch screens?
Voted the answer down because of this statement "Note Fitts's Law is for pointing in two dimensional space by the way; tapping is a different action. Touch occurs in three dimensional space unlike dragging a mouse. " As Alex also commented, this statement is incorrect. See this article for a description of the tasks in his first set of experiments.
May
2
comment What is the optimum button size of touch screen applications?
MIL-STD-1472G uses mm instead of px. See page 32 for a recommended 13mm x 13mm. Also, there are two dimensions to consider: button size and distance between buttons. You do not want to reduce the size of the buttons and reduce the distance between the buttons. In support of John's statement '...the 'ideal size' is really depends on the application...' notice the increased size requirement (+5mm) for situations in which the user is expected to be wearing gloves.
Apr
2
comment Displaying information in one dimension vs two dimensions (list vs graph)
There is no way to answer this question without more details because 'list' and 'graph' are not specific enough. There are many kinds of lists and many more kinds of graphs. Additionally, more information about the data and the user's goals would be helpful. In the absence of more details, I'd recommend starting with Cleveland's research rather than Shneiderman's.
Mar
23
comment How to define/classify messages and notifications
I like this question. It would be interesting to hear how existing systems fall short. Most systems I've seen (IDEs, OSs) have 3 or 4 priority levels/message types. For example: (1) you cannot work on anything until you acknowledge this message, (2) you cannot continue working on this task until you acknowledge this message, (3) you can continue working an acknowledge this message when convenient, (4) you won't see this message unless you go looking for it.
Mar
23
comment How to define/classify messages and notifications
Seems reasonable but I'll state the obvious...the more rows or columns you add to this table, the farther away from the goal of a 'much more simple system' you get.
Mar
23
comment Calendar recurrences on the last day of the month
If the task is 'recur on the last day of the month' then why not use the correct settings in Outlook rather than those shown in the question? Here is how Outlook handles this situation and it seems sufficient for the functionality implied in the question. There is no ambiguity created by the variability in the number of days in a month because 'last day of every month' means 'the last day of every month regardless of the number of days in the month.'
Mar
15
comment Why do physical keyboards still have built-in numpads?
At the risk of sending comments off on a tangent, I second the recommendation for using the left hand for the mouse. I started using a trackball with my left hand because of CTS. I find it works much better than using my right hand for mouse, arrow keys, and number pad.
Feb
28
comment Table Checkbox side best practices
Agreed. Here are more reasons to put them on the left. * Similarity to the basic checkbox * Similarity to a checkbox list. * The checkboxes support actions on more than one item at a time. Controls for actions on individual items usually appear at the end of a row. Putting the 'group action' checkbox in the same location as the 'single item action' controls might lead to problems in anticipation of the function of those controls.
Feb
28
comment How to translate a rating range into Red-Yello-Green Colours?
@UsmanIsmail Mapping a 10-point ordinal rating scale to a set of colors varying by hue should be possible but not necessarily easy. To be effective, the color scale should be created in a color space that makes picking equal perceptual intervals possible, e.g., Munsell, CIELab. Given your lack of experience, do not attempt to use choose your colors in RGB. Choose them in a different space and map them to RGB. Take a look at colorbrewer2.org to understand more about 'equal perceptual intervals.'
Feb
26
comment Do people actually use tooltips?
Indirect evidence of widespread tooltip use. Microsoft collects massive amounts of usage date. Microsoft says "tooltips are successfully and frequently used by people at all skill and experience levels". Therefore, Microsoft has data showing many people use tooltips.
Feb
26
comment What is the difference between a Hi-Fidelity Prototype and a visual design?
In complex software, 'fidelity' does not refer to visual design alone. There are 5 dimensions of a prototype that can range from low-fidelity to high-fidelity and whose level is independent of the other dimensions. (1)Level of Visual Refinement, (2)Breadth of Functionality, (3) Depth of Functionality, (4) Richness of Interactivity, and (5)Richness of Data Model. See McCurdy for more details.
Feb
24
comment Information visualization - display 6 related ranges on a single chart
A sum may be 'the same data' but it requires mental computation by the user. By imposing the 'not show the same data twice' constraint on the design, you are imposing your mental model of the design task on the user's actual task. The easiest way to compare total amount of fruit sold to total expect amount is to show the totals. Anything else requires more effort by the user.
Feb
24
comment Information visualization - display 6 related ranges on a single chart
A grouped bar chart showing expected sales and actual sales for apple sales, orange sales, and total sales would show the data you need to answer the question.
Feb
15
comment Data visualization - Choosing the right chart
I voted for this answer despite the snarky comment about the pie chart. Tufte and his disciples abhor pie charts. However, many graph users (readers?) are not information visualization experts. They prefer pie charts. Why not give them what they want? Or at least give them pie.
Feb
6
comment How do you provide interaction in plots and graphs on touch devices?
In decreasing order of interactivity, checkout Tableau Mobile, Roambi Analytics, SAS Mobile BI. Search for 'business intelligence' on the app store to find more apps like those.
Feb
1
comment Is the middle power option 50% or 60%?
Good answer. The key phrase is 'If not, then nobody here knows.' For example, another possibility is a starting point of greater than 20% followed by a linear progression - this is based on the assumption that the blender at very low power is not capable of blending anything that people normally put in a blender.
Jan
29
comment Mixed case vs all lower case…Which is more readable?
I may be misinterpreting this statement 'Help the user jump to the first letter of a key action' but eye tracking studies of reading do not support that statement. Most eye movements are to the middle of a word rather than the beginning of a word. Nor has research on reading speed of mixed case text shown a consistent superiority effect over upper case text.
Jan
29
comment Mixed case vs all lower case…Which is more readable?
@kontur Interesting. Can you provide an example?