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| Criterion |  Operations Root Cause Tree Analysis |  Innovation SCAMPER |  Operations 5 Whys |  Innovation Brainstorming |
|---|---|---|---|---|
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 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. | 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. | When a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-3 h | 30-60 min | 15-30 min | 30-60 min |
Participantsdifferent | 2-8 | 2-10 | 2-6 | 4-12 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | SCAMPER Idea List, Concept Shortlist, Variation Notes | Root cause notes, Countermeasures | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | Root causeTreeIncidentQuality | BrainstormingIdeationCreativityReframingInnovation | Root causeIncidentLeanProblem solving | BrainstormingIdeationCreativityWorkshopDivergence |