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| Criterion |  Engineering Fault Isolation |  Knowledge Modeling IBIS |  Architecture arc42 |  Decision Making Argument Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 30-180 min | 1-3 h | 1-2 Tage | 1-3 h |
Participantsdifferent | 1-6 | 2-8 | 1-4 | 1-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Issue Map, Positions, Argument Notes | Architecture Document, Context View, Runtime View, Deployment View | Argument Map, Evidence Gaps, Decision Rationale |
Tagsno overlap | TroubleshootingDiagnosisEngineering | RationaleKnowledgeDecision | ArchitectureDocumentationCommunication | SensemakingDecisionRationale |