The document describes a conceptual design for a mobile service called SP&F (Sun Protection & Forecast) that aims to develop the habit of daily sunscreen use. The service would send SMS notifications on sunny days reminding users to place their phone by their sunscreen bottle. It details the user experience flow, theoretical justifications, results of user testing, potential improvements, and next steps for further developing the design.

1. SP&F: Sun Protection & Forecast A conceptual design by Loreanne Garcia & Shuqiao Song Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu Design Challenge Use mobile technology to develop the habit of wearing sunscreen daily. Time investment: 5 hours

4. Karla’s SP&F Experience Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu Karla wakes up early to her cell phone alarm. After that, she checks her phone. She’s excited that there’s a message from SP&F because that means it is going to be a sunny day! She follows the reminder to place her phone with the reminder next to her sunscreen bottle before going to the restroom. She goes through her regular morning routine which includes a yummy breakfast and a nice hot shower. She is happy because her skin is protected and now she is ready for the sunny day! She heads out the door for her morning class. As she’s getting ready to go, she remembers that she needs her phone. Seeing her phone next to the sunscreen, she remembers the SP&F reminder and puts on some of the sunscreen quickly. A beauty-conscious friend tells Karla about a spiffy new service she is using called SP&F (Sun Protection & Forecast) that helps to remind her to put sunscreen on when it’s hot and sunny out. Karla signs up too…she cares about her skin! Later that night, she gets a message from SP&F explaining how the service works. The message suggests that she puts her lotion somewhere visible. Karla digs it out of the bathroom drawer and sets it on her table; then she goes to bed.

5. Prototype of SP&F Notification Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu Place your phone near your sunscreen so you don’t forget to put it on before you go out!

12. SP&F Service Summary Stanford University, Spring 2010 CS377v - Creating Health Habits habits.stanford.edu From the S un P rotection & F orecast notification --> to your mobile phone --> to your sunscreen bottle --> to wearing your sunscreen :)

13. 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

14. 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

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