Why usability/user testing?
为什么要进行可用性/用户测试？
User testing is the most modern and effective web design process to improve your users experience. It is used by most, if not all, of the top websites in the world.
用户测试是最现代、最有效的网页设计过程，可以改善您的用户体验。它被世界上大多数（如果不是全部）顶级网站使用。