Why does Usability Testing matter?
The people who build a product are the worst-placed to see its confusing parts, because they already know how it works. Usability testing shows the product through a newcomer's eyes, and it does so cheaply: a handful of sessions typically surfaces the biggest problems, because the same few obstacles trip most people. It answers a different question from a customer interview. An interview asks whether the problem matters; a usability test asks whether a person can actually use what you built to solve it.
What does Usability Testing look like in practice?
Suppose a team asks five people to sign up and create their first project while thinking aloud. Three of them stall on the same screen, looking for a button labeled "Create" that is actually called "New workspace". Two never notice the sample project in the sidebar. None of those problems showed up in analytics as anything more than a drop-off, and none required a large study to find. Renaming one button and moving one panel is a day's work that a dashboard would never have pointed to.
What are the common mistakes with Usability Testing?
- Helping the participant when they get stuck, which hides the exact problem the session exists to find.
- Asking people whether they like the product instead of watching what they do with it.
- Testing only with colleagues and friends who already know how the product works.
- Running one large study a year instead of a few small sessions every time something important changes.
Related concepts
- Customer Discovery InterviewA conversation designed to learn what a potential customer actually does and struggles with, not to describe your product or ask whether they would buy it.
- User StoryA one-sentence description of a piece of work from the user's point of view, usually written as: as a type of user, I want to do something, so that I get some benefit.
- A/B TestingShowing two versions of something to comparable groups of users at the same time and measuring which one performs better on a metric chosen in advance.
- ActivationThe point at which a new user first experiences the product's core value, not signing up, not logging in, but doing the specific thing that makes them understand why the product exists.