1. Ultimate Sun A conceptual design by Reed Matheny and Jimmy Chen Design Challenge: To create a cycle behavior of sunscreen application in at least five people. Time limit: 4 hours Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

4. Male students aged 18-25

5. Spend ~3 hours per practice outdoors, 2-3 times per week

6. Usually receive Ultimate-related information daily through email and/or text messageStanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

7. Ultimate Sun Storyboard Matt clicks the link and is directed to a Google Form. The form describes the service, briefly outlines the benefits of sunscreen, and allows for easy signup. Matt fills in his cell phone number and cellular provider, then clicks Submit. Matt receives an email about tomorrow’s ultimate frisbee practice. At the bottom of the email is a link to sign up for texts reminding him to go to practice and apply sunscreen. Ten minutes before practice, Matt receives a text: “Practice on Roble Field at 3:15pm. Don’t forget sunscreen!” Due to the immediacy of the reminder, Matt remembers to apply sunscreen. Matt lives a long, healthy, melanoma-free life. Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

8. Prototype of Ultimate Sun http://bit.ly/UltimateSunSignup Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

10. Users enter their cell phone number and carrier information just once to receive reminders for all Frisbee events that are organized via email

11. Event reminders with sunscreen plug reach the user at the critical point – just before he is about to go outside and play

12. Service automatically parses event time and location from email and renders them in the SMS reminderStanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

14. Frisbee events organized by email (practice, pickup, throwing) occur nearly everyday, making it the ideal technology to tap for this vulnerable group of athletes

15. It provides a friendly, lightweight reminder to a group of people who are aware of the considerable benefits of sunscreen but frequently forget to bring their own sunscreenStanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

17. Follow up by calling several users who did not apply sunscreen and ask them why

18. Send email to the entire list, asking those who did not sign up why they chose not to sign up

19. Do A/B testing on different text messages formats, including those with more health-related informationStanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

21. The reminder is not interactive: it’s only a short message before the event

22. There is a short time window to forget the sunscreen reminder. Often there is no perfect moment when the user is carrying a cell phone and applying sunscreen on the field.

23. This service is only a reminder – it assumes that the user has his own sunscreen and is willing to apply itStanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

25. Apply to other sports and outdoor activities that coordinate events via email

26. Supplement SMS with emails or Tweets

27. Other features and interactions

28. Include additional information about sunscreen as part of the SMS reminder (verify that this is effective through user testing)

29. Interactive self-report service: user submits a simple SMS reply to the reminder if he applies sunscreen and builds a reviewable data set of usage over time

30. Interactive self-report service: allow teammates to compare sunscreen usage frequencyStanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

32. Conduct user testing to determine effectiveness of the service, iterating as needed

33. Include more features as outlined previously

34. Explore phone interfaces for channels other than SMS to distribute messagesStanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

35. Evaluation of Design Project How well does the idea reflect concepts from class? 0 1 2 3 4 5 6 7 How well does the design match the design brief? 0 1 2 3 4 5 6 7 How viable/convincing is the proposed solution? 0 1 2 3 4 5 6 7 Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

36. Evaluation continued… How insightful is the proposed solution? 0 1 2 3 4 5 6 7 How well could this solution scale to reach many? 0 1 2 3 4 5 6 7 How well does this document communicate? 0 1 2 3 4 5 6 7 Bonus Points Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu