Upload
damian-robertson
View
212
Download
0
Embed Size (px)
Citation preview
Improving Android’s HTC User Manual
Why do we care?
• New Operating System
• Efficient informational sources are important for future phones
• Poorly made user manuals are wasted money
• Making it easy to be an expert can increase revenue
Defining The User• 66% say they do not use the manual to learn new functions• 76% say they look online or ask a friend. • 14% say they are self learners
• 66% say they do not know how to harness their phone’s full potential
• 61% believe user manuals are important
• 81% say they prefer pictorial instructions whenever possible• Literature shows that the wrong words can be problematic
N = 21
Task Analysis• Evaluated three tasks: • Displaying the phone’s phone number • Turning off the phone’s location• Updating the phones Firmware
• Methods:• Observation
Display phone number
1.0 Open Apps
2.0 Open
Mobile Guide
3.0 Find
“display phone
number”
3.0A Use
query
3.0BRead
Manual
3.1BDevice Basic
3.2BDisplay Number
4.0Encode
Directions
4.1Home >
settings> about phone > phone
identity
5.0Execute
directions
Mean Bedford = 3.8
Turning off Location
1.0 Open Apps
2.0 Open
Mobile Guide
3.0 Find
“Location Settings”
3.0A Use
query
3.0BRead
Manual
3.1BTap
“settings”
3.2BTap
“location settings”
4.0Encode
Directions
4.1Home >
settings> location > read disclaimer > tap
off/on > tap back
5.0Execute
directions
Mean Bedford = 5
Updating Firmware
1.0 Open Apps
2.0 Open
Mobile Guide
3.0 Find
“firmware updates”
3.0A Use
query
3.0BRead
Manual
3.1BTap
“Device Basics”
4.0Encode
Directions
4.1Home > menu >
settings> system updates
> firmware updates
5.0Execute
directions
Mean Bedford = 3
Results
• Mean SUS score = 61.5
• Grand mean of Bedford score = 3.9
Task 3 Task 2 Task 10
5
10
15
20
25
Errors by Task
Task Type
Num
ber o
f Err
ors
Requirements for Prototype• Shall have the same button layout as the HTC EVO by Sprint
• Shall have the same navigation as the HTC EVO by Sprint
• Shall use the same directions for executing the tasks as the HTC EVO by Sprint
• Should have a consistent color scheme as the HTC EVO by Sprint
Prototype
Results• Average SUS Score = 90
• Grand average of Bedford Score = 2.1
Task 1 Task 2 Task 30
5
10
15
20
25
Errors by Task
OriginalPrototype
Task Type
Num
ber o
f Err
ors
Discussion• The prototype yielded an increased SUS score of 28.5 points
• The prototype yielded a lower Bedford score of 1.8 points
• The prototype reduced 53 errors
Limitations
• Usability testing did not take place on an Android phone• This may have biased error rates.