Unless an unprecedented ease of use can be achieved with a touch screen, dials and buttons (with appropriate tactile, audible, and visual feedback via a view-only display or even hardware lamps) may be a better choice.

• 除非会带来非常卓越的易于使用；否则尽量不要使用触摸屏，而要尽量使用拨盘和按键。 再加以适当的触感和声音反馈，或者显示屏，甚至是硬件指示灯等视觉反馈，这样的设计通常是比较理想的。