• How much time do you spend with a computer per day?

• What do you do with a computer? (Game or work?)

• Do you feel uncomfortable physically? (Eyes, cervical vertebra, back)

• Typically, how often do you go for a break from the computer?

• If there is a reminder to remind you to have some rest from the computer, are you willing to have some rest?

• If an app helps remind you to have some rest, what style do you like the app to tell you that you need some rest?

  • Popup window

  • Music

• If this reminder app exists, what function do you hope it could have?

  • Overview of statistic

  • Relaxing music

  • Relaxing scenery picture display

• Personal information

  • Age

  • Major

  • Gender

Questions for Dan Liu will be:

• How to select the dominant hue to make our app more relaxing and durable?

• What kind of layout do you suggest that makes the app more user friendly?

• In this case, how to interact with users when the user needs to be reminded?

• When working or playing a highly intense game, users are always impatient, how to make the app more friendly to them?

To make more sense in algorithm designing, we need to learn something about human physics. The questions for Xin will be:

• How can we know if one needs rest? What physical movements or changes can tell us that?

• To maintain good health, after how long one keeps working or playing, the rest is required?

• What is the consequence, if one does not care about rest and always works or plays with the computer?

• What are the most scientific ways to have a rest?

• From your experience, what suggestion can you provide to make our app more useful?

This user study is to test whether our Eye Guard can actually help users to protect their eyes. Ideally, we mean to invite participants of different background especially with different habits of using computer, such as different levels of depending on computers to work or study. Due to the time limitation and the pandemic situation, we have to do the user study online and the observation during using Eye Guard can only be done with our familiar friends. Luckily, we finally get 20 responses from our survey that is sent to the participants right after they try our application for about 30 minutes. And we interview them online about their experience. Also, we interview our friends based on our observation during they try it.

All the questions are rated in the range of 1-5

• How would you rate your experience with Eye Guard?

• How would you rate the learnability of Eye Guard?

• How would you rate the response time of Eye Guard?

• How would you rate the value of information on each page?

• How do you think the way Eye Guard gives you alerts?

• How do you think the frequency Eye Guard gives you alerts?

• How would you rate the design of the interface of Eye Guard?

• Have you ever been affected by eye fatigue?

• Do you think that you care more about your eyes during using Eye Guard?

• Are there any features make you feel uncomfortable or very happy?

• Are there any features you want to add to it?

• Will you use it daily? Why or Why not?

Among the 20 responses, the rates for overall experience, learnability, value of information on each page and the way of giving alert are mainly 4 -5, which are high scores and shows high acceptance of user. As for the response time, the frequency of giving alerts, the score are concentrated on 3-4. Such results show that user thinks our application can actually achieve some basic functions in terms of protecting their eyes and it is an acceptable desktop application.

From our interview and observation, we find that the current version of giving alerts still interrupt user's work to some extent, and some participants do prefer a popup notification at the right bottom corner of the desktop instead of occurring at the center of the screen. Also, some users feel weird about the duration of the music, they prefer a short sound like "beep" when we give them options like this. On the other hand, most people feel interested about our core idea and very excited about a more elegant version that can run on their mobile devices.