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| Criterion |  Operations Fault Tree Analysis |  Architecture Architecture Decision Record |  Innovation Design Thinking |
|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. |
Complexitydifferent | High | Low | High |
Timedifferent | 2-6 h | 15-45 min | 1 Tag bis mehrere Wochen |
Participantsdifferent | 3-8 | 1-3 | 4-10 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | ADR File, Decision Log, Rationale | Problem Statement, Prototype, Test Learnings |
Tagsno overlap | RiskRoot causeSafety | ArchitectureRationaleDocumentationGovernance | InnovationPrototypeResearch |
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