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| Criterion |  Knowledge Modeling IBIS |  Engineering Fault Isolation |  Product Strategy DIBB |
|---|---|---|---|
Purposedifferent | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-3 h | 30-180 min | 1-2 h |
Participantsdifferent | 2-8 | 1-6 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | DIBB document, Belief list, Bet list, Learning report |
Tagsno overlap | RationaleKnowledgeDecision | TroubleshootingDiagnosisEngineering | StrategyDecisionAssumptionsHypothesis |
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