There are a large number of publications that discuss how to design a good user interface, some offering ``standard'' interface design guidelines.
Two conclusions may be obtained from these publications. Firstly, the interface should be consistent with other applications on that platform. Secondly, when a user is required to perform a task, it should be consistent with their computing experience.
For evaluating the effectiveness and quality of user interface designs, Nielsen has created a list of ten usability guidelines, which summarise most design guidelines.
Visibility of system status. The system should always keep users informed about what is going on, through appropriate feedback within reasonable time.
Match between system and the real world. The system should speak the user's 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.
User control and freedom. Users often choose system 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.
Consistency and standards. Users should not have to wonder whether different words, situations, or actions mean the same thing. Follow platform conventions.
Recognition rather than recall. Make objects, actions and options visible. The user should not have to remember information from one part of the dialogue to another. Instructions for use of t