4. Synthetic creation.
Interface design synthesizes such areas as psychology, sociology, marketing, graphic design, animation, gamification, etc.
5. Pure materials.
A good interface focuses the user's attention on the main functions, helps the user to achieve his goal as quickly as possible.
6. Minimalism.
Minimalism expresses the essence directly and without unnecessary fuss.
7. Emphasis on technology.
The designer must understand how the development takes place and how to achieve the implementation of functions as intended.