8 hands-on laboratories
Feel the principle before you apply it.
Change one condition, complete the task and compare what happens. Every experiment turns the result into an application and a validation plan.
Lab 01 · 3–5 minutesChoice architecture labHow do option count and grouping change decision effort?Run the experimentLab 02 · 2–4 minutesTarget acquisition labHow do target size and distance affect interaction speed?Run the experimentLab 03 · 3–5 minutesWorking-memory labWhat changes when important context remains visible?Run the experimentLab 04 · 4–6 minutesProgressive disclosure labWhen does staging complexity make configuration easier?Run the experimentLab 05 · 3–5 minutesError-prevention labWhich safety strategy fits each consequence?Run the experimentLab 06 · 3–5 minutesKeyboard navigation labCan the task be completed without a pointer?Run the experimentLab 07 · 3–5 minutesContrast states labWhich interface states remain perceivable across themes?Run the experimentLab 08 · 4–6 minutesInformation hierarchy labWhat do people notice and remember after five seconds?Run the experiment
Continue into real product states