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| Criterion |  Operations 5 Whys |  Operations Root Cause Tree Analysis |  Innovation SCAMPER |
|---|---|---|---|
Purposedifferent | 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 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 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 | Low | Medium | Low |
Timedifferent | 15-30 min | 1-3 h | 30-60 min |
Participantsdifferent | 2-6 | 2-8 | 2-10 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Root cause notes, Countermeasures | Cause Tree, Evidence Notes, Countermeasures | SCAMPER Idea List, Concept Shortlist, Variation Notes |
Tagsno overlap | Root causeIncidentLeanProblem solving | Root causeTreeIncidentQuality | BrainstormingIdeationCreativityReframingInnovation |
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