Exercise 1: Car Interface
What are the functional components?
Components relevant to driving behaviour are bolded.- Dashboard
- Air vents
- Rear view mirror (and flip)
- Air vents
- Side mirrors
- Side console
- side mirror adjusters
- fog lights
- headlight adjusters
- air vents
- window controls
- Steering wheel
- cruise control button
- bluetooth phone buttons
- music control buttons
- window wipers
- indicators
- headlights
- Main console
- odometer
- speedometer
- petrol level
- engine temperature
- gear display
- tachometer
- Center console
- hazard light buttons
- cd player
- sound system display
- air-con knobs (temp, in/outside air, on/off)
- air vents
- Center area
- cigarette lighter
- gear knob
- handbrake
- Below steering wheel
- brake
- accelerator
- clutch (manual)
What are the interactions of those components with the driver when driving?
- Rear view mirror (and flip)
Check before driving, adjust during driving if needed - Side mirrors
Check before driving, adjust during driving if needed - Steering wheel
Turn left and right while in motion to direct car - Cruise control button (steering wheel)
Set a constant speed when driving on highway - Bluetooth phone buttons (steering wheel)
Answer and end calls while driving - Music control buttons (steering wheel)
Adjust music type and volume while driving - Window wipers
Turn on and off, adjust intensity if raining - Indicators
Push up or down to turn on left or right indicator to signal change in direction - Headlights
Turn on or off as light levels indicate - Speedometer
Look at to ascertain driving speed - Petrol level
Look at to ascertain current petrol levels - Engine temperature
Look at to ascertain engine temperature - Gear display
Look at to ascertain which gear you are in (in concert with gear knob) - Tachometer
Look at to ascertain engine rev - Air-con knobs (temp, in/outside air, on/off)
Turn on/off and adjust settings - Gear knob
Change gear and tell you what gear you are in - Handbrake
Pull on or off to apply handbrake, generally while car is stationery - Foot brake
Apply pressure with foot to brake while in motion - Accelerator pedal
Apply pressure with foot to accelerate while in motion - Clutch (manual)
Apply pressure with foot to assist in changing gears
What would you test? How would you test?
One idea to replace an existing component would be to change how indicators are turned on or off. Currently, there is a level attached behind the steering that you move up or down to indicate left or right. Which way is left/right depends on where the car is made. Instead of a lever on one side of the steering wheel, the indicator could be incorporated into the steering wheel itself. There could be a button on each side of the wheel (left = left, right = right) that would flash when on. Having a flashing light on the steering wheel may also help when people forget to turn their indicator off.One way to prototype this would be through an existing car with paper buttons on the wheel. The user could drive through a set course (like a learning to drive area, not in real traffic) and try pressing the buttons with their thumbs to indicate. The tester would look at how easy the button is to reach and access. One problem with this testing is fighting against the ingrained behaviour to use the indicator stick.
Exercise 2: Alarm clock app
Features:
- Set, edit, delete multiple alarms
- daisy chain alarms
- set different tones for differnt alarms
- shake phone to snooze
Types of prototypes:
- Horizontal (wide range of features but no depth - can't tap to another screen)
- Vertical (can go down one action path, many screens but only one task)
- Diagonal (more functionality, multiple paths)
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