The document summarizes a conceptual design for an SPF lip balm reminder application called "SPF Stalker". The application aims to encourage daily SPF lip balm use in female runners by posting personalized photos of the target user on Facebook with reminder messages. It would tag the user in the photos to prompt them to log in and see the message as a reminder to apply lip balm. The design leverages social influence on Facebook and curiosity to drive habit formation of daily sun protection. It was created over 2 weeks as part of a university class project to develop health habit technologies.

1. spf stalker A conceptual design by Stephanie Carter and Yin Yin Wu Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu Design Challenge To develop a technology to encourage SPF lip balm use Time limit: 2 weeks- April 17-29, 2010

4. How the spf stalker finds you… Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

5. Prototype of spf stalker Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu Step 1: Post picture/ funny message on facebook Step 3: Facebook notifies the user that they have been tagged in a photo Step 4: User logs into facebook and sees the message! Step 2: Tag the user in the photo

8. User Testing Design Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

9. Shortcomings of Design Potential Shortcomings Facebook images are a novelty that don’t translate to behavioral change Limited to users who are familiar with facebook Wearing SPF lip balm will not lead to sunscreen use Personalization of facebook is difficult to scale Design Response Facebook apps such as Causes have shown that activities on facebook can translate to actual behavior change Facebook demographic is rapidly expanding. Reminders also sent as text messages Habit creation starts with a small behavioral change The personalization is key to the effectiveness of the message. We target fewer users, but with greater yield Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu

12. Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu 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

13. Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu Evaluation continued… 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 How insightful is the proposed solution? 0 1 2 3 4 5 6 7

14. Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu Additional Comments: Overall remarks or additional comments here