Cashapona Usability Guidelines
Users often choose app functions by mistake and will need a clearly marked “emergency exit” to leave the unwanted state without having to go through an extended dialogue. Support undo and redo.
The app should speak the users’ language, with words, phrases and concepts familiar to the user, rather than system-oriented terms. Follow real-world conventions, making information appear in a natural and logical order.
The app should always keep users informed about what is going on, through appropriate feedback within reasonable time.