Direct manipulation is an extremely powerful tool; but it can require skill development for users to become effective. Many direct manipulation idioms require motor coordination and a sense of purpose.

• 直接操作是一个极其强大的工具，但这需要使用者掌握一定技能才能发挥效力，很多直接操作习惯用法需要运动神经的协调和对用途的理解。