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Selected:Fishbone DiagramOpportunity Solution TreeFailure Mode and Effects AnalysisAssumption Surfacing
| Criterion |  Operations Fishbone Diagram |  Product Discovery Opportunity Solution Tree |  Operations Failure Mode and Effects Analysis |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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 | Low | Medium | High | Low |
Timedifferent | 30-60 min | 1-2 h Setup, laufend | 2-6 h | 45-90 min |
Participantsdifferent | 2-8 | 2-6 | 3-10 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Opportunity Solution Tree, Experiment Backlog, Learning Log | FMEA Table, Risk Priority, Mitigation Actions | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | Root causeQualityOperations | DiscoveryOutcomesExperimentsOpportunity | RiskQualityOperationsRoot cause | AssumptionsRiskDecisionDiscovery |