Ергономіка
The GNOME desktop is designed around usability, and it aims to provide a consistent and simple user experience. People use computers to get work done (or to play!), not to figure out complicated user interface puzzles. When designing your application, you should consider how well users can recognize common user interface paradigms, how quickly they can learn the elements that are unique to your application, and how efficiently they can execute tasks once they've learned them.
GNOME provides comprehensive Human Interface Guidelines to help you write applications that are attractive and usable. While no guidelines can provide a single answer for all usability concerns, understanding the GNOME Human Interface Guidelines can make it easier to create a usable application. For more information, please see the GNOME Human Interface Guidelines.