All thinking tools

Fishbone diagram

When to use it

When one fault has several categories of possible causes.

How to use it

Organize hypotheses by relevant categories, choose checks that distinguish candidate groups, and rule them out with evidence.

A real-life example

Misroutes might come from labels, equipment or process. Compare the same batch on different equipment to narrow the search first.

Try it in a game

Two sorting-line faults: change conditions, compare tests, find repairs that remove misroutes while preserving throughput, and keep the evidence.

Play Misroute Investigation

After playing, ask yourself

Which move changed your later choices? If conditions changed, would the same approach still work? What evidence would you need to check before applying the relationships in this game to real life?

Games are simplified practice environments for exploring tools and when to use them. Completing a game does not demonstrate mastery and is not a personality or professional assessment.

These introductions are written by ThinkTest, with learning inspiration from Untools. The games are not official Untools products.

Untools ↗