Kōkiri Learn

Background reading · Technology

Solving the right problem

Symptoms, root causes and the five whys: how problem solvers make sure they fix the real problem, not just the obvious one.

A local ice cream shop is losing money. The owner thinks, 'I need more flavours!' Is that the real problem, or just a guess at a solution? Great problem solvers check they are solving the right problem before they rush to fix it.

Three words to know

  • Symptom: a sign that something is wrong, like a fever. It is not the cause. - Root cause: the real reason the problem is happening, deep down. - Reframing: looking at a problem from a different angle to find better answers.
  • The slow lift mystery

    A building manager kept getting complaints that the lift was too slow. Most people said: buy a faster motor. But the real problem wasn't speed. People were bored while they waited. The fix was to put mirrors beside the lift. People checked their hair, the wait felt shorter, and the complaints stopped. A cheap answer to the right problem beat an expensive answer to the wrong one.

    The bike shop backlog

    A bike shop had a long queue of repairs. The first idea was to hire another mechanic. When the team looked closely, the mechanics were losing about ten minutes every hour hunting for tools in a messy workshop. The real first step was to organise and label the tool racks. Another person would just have lost tools too.

    Ask why five times

    To dig down to a root cause, ask 'why?' again and again. Why is the floor wet? The pipe is leaking. Why is it leaking? The seal broke. Why did it break? It was poor quality. Keep going until you reach something you can change.

    Try it on your own world

    Your local park is always empty, and the council plans a new playground. Before spending the money, you could ask neighbours why they don't visit, check whether the park feels safe and has shade, see if people use another park instead, and look at the lighting and paths. The answer might not be a playground at all.

    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