A key challenge in designing a Wizard of Oz prototype is that you actually have two interfaces to worry about: the user's interface, which is presumably the one you're testing, and the wizard's.
A key challenge in designing a Wizard of Oz prototype is that you actually have two interfaces to worry about: the user's interface, which is presumably the one you're testing, and the wizard's.
设计原型向导一个关键的挑战是你实际有两个界面要考虑：用户的界面，（大概是你正在测试的那个）和向导界面。