Usability Testing

Testing with real people is how you find out if the design works — not by looking at it, but by watching someone use it.

When to Use

• After design-builder produces a working prototype
• Before declaring a design complete
• When the design-critic flags persona coverage gaps
• When assumptions about user behaviour need evidence

Process

Step 1: Define What You're Testing

Write 3-5 task scenarios that map to the core jobs in the brief. Each task:

• Starts with a realistic trigger — "You just bought a new plant and want to add it to the app"
• Has a clear success condition — "The plant appears in your list with a watering schedule"
• Does not tell the user how — never say "tap the + button"