Stanford University, Spring 2010CS377v - Creating Health Habitshabits.stanford.edu

SP&F: Sun Protection & ForecastA conceptual design by

Loreanne Garcia & Shuqiao Song

Design ChallengeUse mobile technology to develop the habit of wearing

sunscreen daily.Time investment: 5.5 hours

[Some brief edits in red]

Stanford University, Spring 2010CS377v - Creating Health Habitshabits.stanford.edu

SP&F: Sun Protection & Forecast

Persuasive Purpose • To persuade our users through

mobile technology to apply sunscreen as part of their daily morning routine for our sunscreen challenge(developing the health habit as a span and hopefully path behavior)

Industrial Design

Place your phone near your sunscreen so you don’t forget to put it on before you go out!

Stanford University, Spring 2010CS377v - Creating Health Habitshabits.stanford.edu

User Description• College aged female.• Has and wants to use

lotion w/SPF 15.• Has a phone w/SMS, MMS,

or email capabilities.• (For initial test) Lives in the

PA/Stanford area.

Karla leads a fast paced life so it’s hard to remember to put on sunscreen in the mornings, but she really cares about her skin.

Stanford University, Spring 2010CS377v - Creating Health Habitshabits.stanford.edu

Karla’s SP&F Experience

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.

Stanford University, Spring 2010CS377v - Creating Health Habitshabits.stanford.edu

Prototype of SP&F Notification

Place your phone near your sunscreen so you don’t forget to put it on before

you go out!Receive text with survey link every other evening to measure habit.

Receive service explanation email on the evening of April 19th.

On the morning of sunny days April 20-29th, receive SP&F notification (see right).

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Stanford University, Spring 2010CS377v - Creating Health Habitshabits.stanford.edu

Features/Functionality

• User signs up for service by submitting their cell number to our list.

• Initial notification explains service and asks user to acquire SPF lotion and place the bottle somewhere visible.

• SP&F notifies user on the morning of sunny days by giving them the forecast and a reminder to put their phone near the sunscreen bottle.

Stanford University, Spring 2010CS377v - Creating Health Habitshabits.stanford.edu

Theoretical Justifications

• Initial service notification persuades SBTM* by asking the user to acquire sunscreen and/or placing the sunscreen in a visible place.

• The subsequent notifications act as a trigger signal to persuade the behavior of putting the phone next to the SPF bottle; the next SBTM.

• Placing the phone next to the SPF bottle conditions the new behavior of putting on sunscreen daily with the existing cycle behavior of getting your phone before you go out the door in the morning.

• Natural positive associations and reinforcement with SP&F service and sunscreen (only sent on sunny days and encouraging a healthy behavior).

• Not as disruptive; using “light touch” (not notified every day).

*SBTM=Smallest Behavior That Matters

Stanford University, Spring 2010CS377v - Creating Health Habitshabits.stanford.edu

Results of User Testing

• Ask for participation and feedback about mock prototype:• Amy, 21

• Thinks MMS would work best because she has an iPhone • But might be obnoxious if received notification too early in the

morning (if we sent it early to make sure everyone got it)• Worried about MMS/SMS text limitations (only has 200/month)

Give info about estimated # of texts/month--set up user expectations in service explanation.

• Prefer Farenheit

 

Stanford University, Spring 2010CS377v - Creating Health Habitshabits.stanford.edu

Shortcomings of Design• Might only develop habit of wearing sunscreen

on sunny days even though UV rays can get through clouds on overcast days.• Send a random message on overcast day if metrics show this

pattern.

• Time of trigger might not be well tailored to specific user routines.• e.g. What if user leaves very early before receiving our message?• e.g. What if our very beauty conscious users don’t want to put on

sunscreen just as they leave because they already put on their make up? (a concern mentioned in our last class session)

• Survey users for general preferred time of notification.

• SP&F notification might be forgotten if user checks many other messages after receiving the notification.• Use SMS or MMS because of immediate signaling

Stanford University, Spring 2010CS377v - Creating Health Habitshabits.stanford.edu

Expansion - What else is possible?Other Features and Interactions

• Send occasional random texts on not sunny days stressing important of wearing sunscreen on overcast days because UV ray strength.

• Provide ‘current temp’ in addition to high for day.• Personalize time of notification reception to each

user.• Develop a way for users to report and log if they

used sunscreen. • Provide positive feedback to user on how many

days they’ve used sunscreen.• Let user customize their notification. E.g. color,

info, Fahrenheit vs. Celsius, etc.• Allow users to easily forward the

notification/service invite to friends.

Stanford University, Spring 2010CS377v - Creating Health Habitshabits.stanford.edu

Next Steps in Design Process• Gather beta users mobile/email info.

• Have 5 users signed up as of now. √• Provide them with moisturizer with SPF if

needed.• Create service explanation email details.

• Survey for approximate time.• Develop metrics for evaluation.• Develop a way to gather feedback/metrics from

users. (Use Google Survey or WuFoo)• Create templates for notification.• Determine logistics of one week prototype (who

sends).• Send service explanation email.• Beta test with real users.• Ask for feedback.

Stanford University, Spring 2010CS377v - Creating Health Habitshabits.stanford.edu

SP&F Service Summary

From the Sun Protection & Forecast notification to your mobile phoneto your sunscreen bottleto wearing your sunscreen