I'm using User Centered Design method to design User Interface and User Experience Travemates app. The main reason, because I want to involve users in designing from the start until finish. At the end Travemates app will have high acceptance percentage from the users.
I'm going to use Usability Testing to evaluate my design, and use System Usability Scale to know what is the total score of user accpetance.
We are using Material Design as our design system. But I do make our design system based on Material Design.
Type Styles
Elevation
Primary Color
Buttons