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| Criterion |  Operations Root Cause Tree Analysis |  Operations Root Cause Analysis |  Innovation SCAMPER |  Operations 8D Problem Solving |
|---|---|---|---|---|
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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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 an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Medium | Medium | Low | High |
Timedifferent | 1-3 h | 1-4 h | 30-60 min | 1-6 Wochen |
Participantsdifferent | 2-8 | 3-8 | 2-10 | 4-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | SCAMPER Idea List, Concept Shortlist, Variation Notes | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Root causeTreeIncidentQuality | Root causeProblem solvingQualityIncident | BrainstormingIdeationCreativityReframingInnovation | QualityProblem solvingRoot cause |