Info Compare Pointing Device Use: Mouse? Rail Pad? Trackball?...
Have you lot e'er heard of Fitt's Law?
"Fitts’s Law allows to predict a fourth dimension it takes a user to indicate at an object using a specific pointing device (such equally a mouse, trackball, trackpad, or fifty-fifty a finger)".
At a website nearly Fitt's Law - http://fww.few.vu.nl/hci/interactive/fitts/, you lot tin dismiss collect information on how long it takes a user to indicate at an object comparison devices - skip to pace twenty inwards the tutorial to become straight to comparison pointing devices. For example, you lot desire to collect information on whether a pupil is faster using a traditional mouse or a rail pad. This website takes you lot through a serial of exercises where you lot click on diverse points using dissimilar different pointing devices. Then a graph is generated comparison the fourth dimension is takes to click using the 2 devices.
The moving painting higher upwardly is the information collected when I tested Fitt's Law on myself using a rail pad (blue dots) versus a traditional mouse (red dots). I could stimulate got easily predicted that I would last improve amongst a traditional mouse. I am really clumsy amongst a rail pad.
If you lot become through the entire Fitt's Law presentation at the website, it is really informative on determining the location, distance together with size of buttons together with other elements. It explains why sure enough locations are easier to click on together with view.
Thought I would perish it along to those who are involved inwards assistive technology evaluations. Seems similar it would last a swell starting indicate to compare a student's abilities to purpose pointing devices.
Reference: Fitt's Law Demonstration. Retrieved from the spider web on 3/5/14 at http://fww.few.vu.nl/hci/interactive/fitts/.