The work considered the quality of the UI in terms of usability and efficacy, resulting in the selection of the most appropriate interaction techniques. The benefits of various techniques such as graphics, colour, icons and multimedia were investigated and designs developed and evaluated using computer-controlled simulations and emulations. These iterative developments and evaluations required several investigations in the field and close cooperation with end users. The General Rules provide basic information about user interface design. The Common Elements part consists of a commonly agreed set of the rules for the FACE user interface elements.
Appendices lists a set of translations, abbreviations and references.