Table 2.

Design process (drawn by Yaru Li)

Design cycle	Design content	Design goals
Earlier stage	Sort out relevant materials, conduct a complete market survey, and prepare for scientific research. Through comprehensive research and analysis, a preliminary low-fidelity design of APP was carried out with big data analysis	The study of this topic captures the most accurate design positioning to ensure the low-fidelity design of APP
Interim	Scientifically arrange and design the colors and contents of the APP, and repeatedly test the practicality and existing problems of the APP in mental health departments and public spaces	Complete the preliminary design of APP and test the actual application effect of APP
Anaphaseis	According to the detection results, the APP is optimized again	Sustainable optimization and improvement of APP