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| Criterion |  Knowledge Modeling IBIS |  Engineering Fault Isolation |  Decision Making Decision Rights Mapping |  Engineering Goal Question Metric |
|---|---|---|---|---|
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. | In organizations with many stakeholders, it often blurs who actually decides and who is merely consulted. It separates options, evaluation criteria, and open risks. The result is captured as a Decision Rights matrix and an agreement. | Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 1-3 h | 30-180 min | 90-180 min | 90-180 min |
Participantsdifferent | 2-8 | 1-6 | 4-12 | 3-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Issue Map, Positions, Argument Notes | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Decision Rights Matrix, Agreement | GQM Table, Metric Profiles |
Tagsno overlap | RationaleKnowledgeDecision | TroubleshootingDiagnosisEngineering | DecisionGovernanceAlignmentResponsibility | MetricsMeasurementEngineeringAlignment |