.title Design Principles .synonyms principles design .definition Design principles for making practicle, intuitive, efficient menus. .contents This section will expound some principles of practical, intuitive, efficient menu design. Because user interface design is a balanced science and art, it is up to the menu designer to decide which heuristics are applicable to the task at hand. It is hoped that these will stimulate the imagination, and suggest other ways in which the unique characteristics of pie menus may be exploited. .lines 2 ==> .~ Visual Representation of Function~