Prototyping for User Testing: Why It's Necessary and How to Do It
Prototypes are handy as internal deliverables that communicate your ideas visually and interactively. But if that's all you're using them for, you're missing out on the benefits they can offer in the form of user feedback. Conducting user testing with your prototypes is valuable because you can't be sure you have a winning design until you have real data to back it up.