Table 1.

Key informant interview guide.

Objective	Parent-directed interview prompts	Child-directed interview prompts	Dyad-directed interview prompts (parent and child)
Background information	Tell me about his/her asthma medications before joining this study. What was working and what wasn’t? How about now that he/she has been in the research study? What has changed?	Can you tell me how old you are, what grade you are in, and whether you have your own cell phone or not? If not, whose cell phone did you use for this study? About how many kids in your class at school would you say have their own cell phones? Do most kids your age have them, some, or only a few?	N/Aa
Impact of asthma on life	What is it like for you having a child with asthma? How does your child having asthma affect your work? What about you, (parent/caregiver), how has his/her asthma affected your schedule?	What is it like to live with asthma? How does your asthma affect your ability to join in on activities with your friends and family?	How often would you say you have missed school or work because of your child’s asthma in the past? What about now?
Perceptions of SAMSb	What about the system helped you manage your child’s asthma? What about the system made it difficult?	N/A	Tell me about how comfortable you were using the SAMS system. If you could describe the SAMS system to someone, what would you say about it? Why? Now with this system, there is very little human interaction because you receive text messages or alerts versus actually speaking to someone. What are your thoughts on this? Which questions that were sent through the messages were helpful? Which ones were annoying? How could we make the messages better? What was the best thing about the SAMS system? What about the worst thing?
Recommendations	Some parents have suggested receiving feedback on how well their children are doing with their inhalers. What are your thoughts on this? What types of things do you think would be helpful to know? If you were to pick an ideal scenario for support on managing your child’s asthma, what would you look for? Would you want mostly to use technology or combine it with telephone calls? If combined, how frequently would be the right amount of time for telephone calls?	Some people have suggested we add a type of game in the system to make it more fun. What do you think about that? When you play electronic games, what makes them the most fun? What types of rewards do you like to receive on the games when you reach certain levels?	Tell me what would have made this easier to use or what you would change about it if you could.

^aN/A: not applicable.

^bSAMS: Smartphone Asthma Management System.