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Selected:Design ThinkingFault Tree AnalysisFishbone DiagramATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Innovation Design Thinking |  Operations Fault Tree Analysis |  Operations Fishbone Diagram |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. |
Complexitydifferent | High | High | Low | High |
Timedifferent | 1 Tag bis mehrere Wochen | 2-6 h | 30-60 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 4-10 | 3-8 | 2-8 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Fishbone Diagram, Cause Categories, Investigation Backlog | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | InnovationPrototypeResearch | RiskRoot causeSafety | Root causeQualityOperations | ArchitectureQualityRiskTradeoffsStakeholders |