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| Criterion |  Operations Root Cause Tree Analysis |  Product Strategy DIBB |  Operations 8D Problem Solving |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | 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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 1-3 h | 1-2 h | 1-6 Wochen | 45-90 min |
Participantsdifferent | 2-8 | 2-8 | 4-10 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | DIBB document, Belief list, Bet list, Learning report | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | Root causeTreeIncidentQuality | StrategyDecisionAssumptionsHypothesis | QualityProblem solvingRoot cause | AssumptionsRiskDecisionDiscovery |