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| Criterion |  Operations Root Cause Tree Analysis |  Operations 5 Whys |  Innovation SCAMPER |
|---|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | For an existing solution under pressure to change, the method deliberately opens space for systematic variants. It directs attention to rebuilding, combining, and repurposing rather than only new basic ideas. This produces concrete evolution paths for products, offerings, or workflows. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 1-3 h | 15-30 min | 30-60 min |
Participantsdifferent | 2-8 | 2-6 | 2-10 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Root cause notes, Countermeasures | SCAMPER Idea List, Concept Shortlist, Variation Notes |
Tagsno overlap | Root causeTreeIncidentQuality | Root causeIncidentLeanProblem solving | BrainstormingIdeationCreativityReframingInnovation |
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