Kōkiri Learn

Background reading · Technology

Prototypes: make it rough, test it early

Why designers build quick, cheap prototypes, how teams decide fast, and what famous inventors learned from their mistakes.

A prototype is an early version of a design made to test an idea. Your first one should be fast and cheap, because its job is to teach you something, not to be perfect.

A good plan today

Have you ever been in a group where everyone has ideas but nothing gets made? That's called analysis paralysis. A good plan today is better than a perfect plan next week, because the sooner you build something, the sooner you find out what's wrong with it.

Roles that get teams moving

  • Decider: listens to every idea, then makes the final call when the team is stuck. - Devil's Advocate: respectfully points out what might go wrong, to help the Decider think. - Doer: starts building or drawing as soon as the Decider gives the green light.
  • Rotate the roles each task so everyone gets a turn to lead. If you choose a 'wrong' path quickly, you still have time to fix it. If you spend the whole hour deciding, you have no time to fix anything.

    Learning from failure

    In 1993 James Dyson released a vacuum cleaner with no bag. It used spinning air (cyclonic separation) to pull dust out, so suction didn't drop as it filled up. He has said he built more than 5,000 prototypes on the way. Each one that failed taught him something the next one used.

    Ideas from noticing

    In 1941 the Swiss engineer George de Mestral came home from a walk and found burrs stuck in his dog's fur. Looking closely, he saw tiny hooks catching on loops of hair. Years of testing later, he had hook-and-loop fastening, which we call Velcro. Careful observation, not a lucky guess, started the idea.

    Test with the real person

    Hand your prototype to your user and stay quiet. Watch where they hesitate. Every stumble is information. Then change one thing and test again. This loop of build, test and improve is called iteration.

    Sources and further reading

    Written for Kōkiri Learn students in our own words. Check facts against the sources.

    Used in: Te Hoahoa Otinga: Designing Solutions