Root Cause Analysis for Quality
Structured root cause analysis for quality defects and process failures: tight problem statements, data before causes, 5-Whys and fishbone done properly, and verified, systemic fixes instead of band-aids.
53m
Total time
4
Competency levels
12
Lessons
What you'll learn
- Write a tight problem statement covering what, where, when and how much, sharpened with is/is-not analysis
- Gather and organise factual data about a defect before proposing any cause
- Apply the 5-Whys method correctly and recognise its common traps
- Build a fishbone (Ishikawa) diagram using the 6M categories to structure possible causes
- Distinguish root causes from contributing factors and symptoms, and verify a suspected root cause with evidence
- Choose systemic corrective actions over band-aid fixes and confirm they actually worked
Curriculum
Progress through each competency level in order.
1
Awareness
- 2mSymptoms, Causes and Root CausesKnowledge
- 2mWriting a Tight Problem StatementKnowledge
- 7mAwareness Check: Problems and CausesAssessment
2
Knowledge
- 3mData Before CausesKnowledge
- 3m5-Whys Done ProperlyKnowledge
- 8mKnowledge Check: Data and 5-WhysAssessment
3
Skill
- 3mFishbone Diagrams and the 6M CategoriesKnowledge
- 3mRun a Root Cause Analysis on a Real DefectAssignment
- 8mSkill Check: Structured Cause AnalysisAssessment
4
Mastery
- 3mVerifying the Root Cause and Fixing the SystemKnowledge
- 3mLead a Verified RCA Through to a Systemic FixAssignment
- 8mMastery Check: RCA JudgementAssessment
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