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Usability Problem | Severity | Type | Solution |
|---|---|---|---|
User focus was on the split between the right and left partitions, but the arrows providing visual cues about what the controls would do were centered over each partition. | Minor | Efficiency | Align the arrows along the split between partitions rather than centering them. |
Our project is unique from many other projects in that it is highly amenable to keystroke level analysis. We are able to perform a highly quantitative analysis comparing the performance of our keyboard versus a standard keyboard. If no mistakes are made, our keyboard requires 32 keypresses to enter "BenB12" whereas it takes 39 keypresses with a standard keyboard. With practice, we are confident that our keyboard can be much faster to use than existing keyboards.
It is interesting to note that given this keystroke-level analysis, we can craft phrases in which our keyboard requires a fewer or greater number keypresses than a standard keyboard. We notice that standard keyboards are good for entering repeated letters and co-located letters, whereas our keyboard offers a roughly equal cost of 5 keypresses for all characters. In the future, given the resource to carry out a more in-depth evaluation we would like to if our keyboard can offer better performance for certain types of input.
4. Reflection
In all stages of testing (paper prototyping, computer prototyping, etc), user feedback was the most valuable piece of information we received. It was the primary guiding force in directing how our prototype evolved over the course of the project.
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