Optimizing Mobile Interfaces for Novice and Low-Literacy Users
Explore the impact of mobile interfaces on novice users and those with low literacy levels, comparing text-only, voice-only, and graphical user interfaces. Discover how different designs affect user success rates and completion times, along with interesting gender-based findings. Gain insights into the benefits and challenges of each interface type, showcasing the importance of user-friendly design for all individuals.
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Presentation Transcript
DESIGNING MOBILE INTERFACES FOR NOVICE AND LOW-LITERACY USERS Chandler Sauers
MOBILE DEVICES ARE USED OUTSIDE OF FIRST WORLD COUNTRIES
RESULTS 0 out of 20 people succeeded. The users who couldn t read were unable to read the menu. Users who could read were unable to put context to the words. No one was surprised.
VOICE ONLY INTERFACE Tech support style voice commands and prompts. The testing environment was wizard-of-Oz style, as to avoid any voice recognition problems. The experimenter would play back recorded files over the phone.
RESULTS 13 out of 18 users succeeded 72% Average completion rate: 5.2 minutes.
GRAPHICAL UI Menu based design. Voice instructions played on each screen Includes a tutorial video at the start. Tutorial video explained basics of banking.
RESULTS 20 out of 20 users succeeded 100% Average completion rate: 13 minutes.
INTERESTING FACTS There was a gender impact on the results. 6/10 females and 7/8 males succeeded using the voice UI. Female test subjects took twice as long to complete the test. Both were concluded to be statistically significant. No difference with the graphical UI
MORE FACTS Users were faster and were more independent using the voice UI. Using the graphical interface caused initial anxiety for novice users. The UI felt more like a conversation. Some users already had experience with voice UIs. Some users thought the voice UI was a real person. Users said that the graphic UI helped them picture banking better.
DESIGN TIPS Provide graphical cues Provide voice annotation support Avoid nonnumeric text input Avoid scrolling Minimize soft-key mappings
SOURCE http://delivery.acm.org/10.1145/1960000/1959024/ p1- Medhi.pdf?ip=128.194.3.130&id=1959024&acc=A CTIVE%20SERVICE&key=B63ACEF81C6334F5 %2E79B51EFA2DE92FE8%2E4D4702B0C3E38 B35%2E4D4702B0C3E38B35&CFID=589977779 &CFTOKEN=92630858&__acm__=1414262974_8 c47bca0d8138f50c21d976ae4e3eef5
