Root cause analysis by Kaoru Ishikawa (1968). Identify all causes contributing to a problem across different categories.
5 Main Categories: People, Process, Materials, Environment, Methods - also known as "5M" or "6M" when including Measurement.
"Guide to Quality Control" by Kaoru Ishikawa → Check on Amazon
From the inventor of the fishbone diagram — the foundations of cause-and-effect analysis.
"The Toyota Way" by Jeffrey K. Liker → Check on Amazon
The lean management principles behind relentless root-cause problem solving.