The document appears to be a final report from Chan Kim and Justin Wang on their Splitter app prototype. It discusses their motivation for the app, which is to easily split group expenses. It then covers their prototype progression from paper to interactive to working code. Various screens and features of the prototype are shown and described, including user profiles, group events, payments, and a new user experience flow. Feedback from testing earlier paper and interactive versions is also included, along with next steps like a targeted mobile app and possible PayPal integration.

1. Splitter—final report
Chan Kim & Justin Wang
Thursday, December 6, 2012

2.
MOTIVATION
PREVIOUS EXPERIENCE
Thursday, December 6, 2012

3.
MOTIVATION
CURRENT EXPERIENCE
Thursday, December 6, 2012

4. Split group expenses
without the hassle.
Thursday, December 6, 2012

5. Save you and your friends
the headache.
Figure out how much each of your friends owes for that
camping trip to Yosemite last weekend, where
—Adam paid for firewood,
—Becky paid for gas,
—Cindy paid for the campsite, and
—David paid for marshmallows.
Thursday, December 6, 2012

6. Get reimbursed on time
(finally).
Send a reminder to your forgetful roommate to pay you
back for last month’s groceries.
Thursday, December 6, 2012

7. Add payments on the go.
As you’re taking a road trip with your friends, quickly
record payments for gas, food, or whatever other
expenses come along the way.
Thursday, December 6, 2012

8. Remember who owes you,
and how much.
Make a note that your friend Esther owes you ten bucks
for a burger and shake from that cash-only diner.
Thursday, December 6, 2012

9. User profiles
Group events (primary)
Roommates
Project members
Co-workers
Thursday, December 6, 2012

10. Research findings
Immediacy of payment input
Receiving IOUs on time
Users forget to pay
Transparency of spending
Thursday, December 6, 2012

11. Prototype progression
Paper
Interactive
Working code
Thursday, December 6, 2012

12. LIST OF GROUPS
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

13. LIST OF GROUPS
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

14. LIST OF GROUPS
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

15. GROUP SUMMARY
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

16. GROUP SUMMARY
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

17. GROUP SUMMARY
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

18. INDIVIDUAL SUMMARY EXPANDED
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

19. INDIVIDUAL SUMMARY EXPANDED
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

20. INDIVIDUAL SUMMARY EXPANDED
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

21. GROUP LIST OF PAYMENTS
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

22. GROUP LIST OF PAYMENTS
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

23. GROUP LIST OF PAYMENTS
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

24. ADD PAYMENT
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

25. ADD PAYMENT
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

26. ADD PAYMENT
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

27. EDIT GROUP
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

28. EDIT GROUP
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

29. EDIT GROUP
PROTOTYPE PROGRESSION
Thursday, December 6, 2012

30. bit.ly/splitterapp
Thursday, December 6, 2012

31. “David goes camping.”
Thursday, December 6, 2012

32. Thursday, December 6, 2012

33. Thursday, December 6, 2012

34. Thank you
Thursday, December 6, 2012

35. Appendix
Thursday, December 6, 2012

36. Differentiation
Usability and visual design
Target mobile
Reduced barrier for first-time user
PayPal integration?
Thursday, December 6, 2012

37. Feedback from paper
Button to add payment is unclear
Thursday, December 6, 2012

38. Feedback from interactive
Expanded interaction in summary is unclear
Clarify outcome of tapping “settle” button
Fix unclear icons
Maintain consistent typography
Use real images
Thursday, December 6, 2012

39. NEW USER EXPERIENCE
GROUPS SCREEN
Thursday, December 6, 2012

40. NEW USER EXPERIENCE
EDIT GROUP SCREEN
Thursday, December 6, 2012

41. NEW USER EXPERIENCE
SUMMARY SCREEN
Thursday, December 6, 2012

42. NEW USER EXPERIENCE
DETAIL SCREEN
Thursday, December 6, 2012

43. NEW USER EXPERIENCE
PAYMENTS SCREEN
Thursday, December 6, 2012

44. NEW USER EXPERIENCE
NEW PAYMENT SCREEN
Thursday, December 6, 2012

45. NEW USER EXPERIENCE
EDIT PAYMENT SCREEN
Thursday, December 6, 2012

46. PAPER PROTOTYPES
VERSION A
Thursday, December 6, 2012

47. PAPER PROTOTYPES
VERSION B
Thursday, December 6, 2012