Five Signs Your 8D Report Is Closed But Not Fixed
A closed 8D report proves the paperwork got filled in. It does not prove the defect stopped. Five checks, all readable from the report itself, tell the two apart.
Blog
Notes from the factory floor.
How manufacturing teams find root causes, close 8D reports and stop the same defect coming back. Written by the people building SolveR.
Poka-Yoke for Knowledge: Why Your FMEA Stays Empty
Your most experienced engineer writes down the least, and the incentive explains it. Shingo stopped relying on attention and made the error impossible instead. The same move is available for knowledge, and it changes when the writing happens, not who is asked to do it.
Two Years to Describe One Defect: What Toyota's Recall Teaches About Problem Definition
Toyota needed two years to describe one software defect. The fix then took weeks. In 8D terms the cost lived in D2, not D4: a complete 5W2H Is / Is-Not description, plus one honest test, is what separates root cause analysis from guessing.