SWICKR Alex Odle, Rylan Hawkins, Joe Woo, Mazen Hassan

Overview  Overall Problem and Solution  Task Demonstration  Tasks  Design Evolution  Current UI  Final Test  Summary

Overall Problem and Solution Find a StoreView a menu Choose your products Order them Wait in Line On the Way PROBLEMSOLUTION

Task Demonstration Difficult – Find the closest Starbucks and order a Grande Vanilla Frappuccino. In addition, add this item to your favorites.

Overview  Overall Problem and Solution  Task Demonstration  Tasks  Design Evolution  Current UI  Final Test  Summary

Task 1 – Order a Vanilla Frappuccino Task 2 – Order from your favorites Task 3 – Order for you and a friend The Tasks

Task 1 – Order a Vanilla Frappuccino Task 2 – Order from your favorites Task 3 – Order for you and a friend The Tasks Why these tasks?

The Tasks Maximum amount of coverage. Varying difficulty levels. Aligned with survey and task analysis results.

Design Evolution How did we get to this point?

Survey and Task Analysis Match between system and real world

Survey and Task Analysis Match between system and real world Map Proximity is key Favorites People order the same things

Low Fidelity Prototype User Control and Freedom Error Prevention Consistency and Standards

Low Fidelity Prototype User Control and Freedom No way for user to change an order except press the back button.

Low Fidelity Prototype User Control and Freedom

Low Fidelity Prototype Error Prevention

Low Fidelity Prototype Error Prevention

Low Fidelity Prototype Consistency and Standards Don’t redefine expected behaviors.

Heuristic Evaluation User Control and Freedom

Heuristic Evaluation User Control and Freedom

Current User Interface What does it do? How does it work? What is it missing?

Final User Test Online Survey Lab Experiment

Online Survey - Method Implemented Logging Tracked time to task completion Number of erroneous clicks

Online Survey - Results First task average completion time was 7:10 Second task average completion time was 0:32 Third task average completion time was 1:35 What does this tell us? How do we fix this?

Lab Experiment - Method Observed users as they went through tasks Used an actual iPhone

Lab Experiment - Results Most users had trouble with Map page High fidelity vs. low fidelity issues What does this tell us? How do we fix this?

Final User Test Online Survey vs. Lab Experiment Quantitative vs. Qualitative

Summary User experience driven changes Iteratively better product Different stages yield different challenges

Questions?