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1. This screen was the major aspect of our design, and the work we put in paid off. Users said that the size of the UI elements (such as text) was similar to a an analog cox box, and in reality our UI was easier to read because of the brightness of the screen (as compared to a real cox box screen, which is comparable to a calculator LCD).
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4. The dragging affordance used (the three dashes on the right of each row) were not as intuitive as we hoped; although it is a standard iOS affordance, users did not seem familiar with it.
5. Large type makes data easy to read, even for a user who is at a further distance from the screen than normal (as the coxen will have the device mounted). 6. Early on, we thought users would want to save settings to use them for new races, but they showed little interest so we nixed the feature.
76. We also nixed the combined data rows because they are not normal iPhone affordances.
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1. This map allows the same gesture-based controls that are available in the iPhone Maps application, which meant that users were intimately familiar with it already. We did, however, see some users get confused as to what gestures would apply to the map and what gestures would apply to the table view. See our Evaluation section below for more details.
"Ready" Pressed @ New Race Screen -> Countdown timer
1. We added this countdown sequence (UI disables, screen shades, and there is a countdown from 3...2...1...Start!) after every user mentioned in the Paper Prototype that this would be necessary, in order to allow for the user to get ready to race before the data starts recording. Again, we saw some user confusion with this feature in the final iteration; see the Evaluation section for more details.
Countdown timer ended -> Live Race Screen
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2. If there exists no data for the stroke rate/split we grayed out the "Plot" button and replaced the numbers with "- " or "- - : - -" respectively. Users found this to be very intuitive and never confused that feedback with lost data (usually it meant their accelerometer or GPS are turned off).
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