1. 1  Problem  Students can’t catch the bus on time  Solution  Provide a new interface to monitor the bus  Notify user when the bus comes HCI Project: Bus Alarm 2/10/2016 Xue Liu, Tingting Li, Siliang Xia busalarm2015@gmail.com

2. 2  User Function  Select routes to monitor  Check bus information Current location Arrival time  Drawback:  Costs user’s time and attention Existing Solution: TransLoc 2/10/2016

3. 3  Idea  “Push” instead of “Pull”  User Function  Guide user to input alarm information Start stop, end stop, route to monitor Time to leave Alarm frequency  Import user’s event from their schedule  Get bus information from notification Our Solution: Bus Alarm 2/10/2016

4. 4  Number of participants: 35 participants, 31 filled out questionnaires  Rationale  Participants used Bus Alarm whole week and filled out questionnaires  Participants used TransLoc in the second week and filled out questionnaires  Hypothesis  Primary: Users are more satisfied with Bus Alarm than TransLoc  Secondary: Bus Alarm is more useful for users to catch a bus on time than TransLoc User Study Conditions 2/10/2016

5. 5  Primary hypothesis: Users are more satisfied with Bus Alarm than TransLoc  Secondary hypothesis: Bus Alarm is more useful for users to catch a bus on time than TransLoc  Analysis  P-value (< 0.01%) < Accepted standard alpha level 5%  T-value > HCI usual standard T-values 1.96  Hypothesis rejected! Result MeanStandard deviationsP-valueT-value Bus Alarm5.76671.585< 0.0001 7.85 TransLoc8.46670.957 MeanStandard deviationsP-valueT-value Bus Alarm5.56671.585< 0.00017.59 TransLoc8.36671.197 2/10/2016

6. 6 Conclusion  Lessons learned from the project 2/10/2016