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Selected:Design ThinkingFault Tree AnalysisATAM (Architecture Tradeoff Analysis Method)8D Problem Solving
| Criterion |  Innovation Design Thinking |  Operations Fault Tree Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations 8D Problem Solving |
|---|---|---|---|---|
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. | 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. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitysame | High | High | High | High |
Timedifferent | 1 Tag bis mehrere Wochen | 2-6 h | Several meetings plus preparation and analysis; total effort depends on scope | 1-6 Wochen |
Participantsdifferent | 4-10 | 3-8 | Evaluation team, architects, and relevant stakeholders | 4-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | InnovationPrototypeResearch | RiskRoot causeSafety | ArchitectureQualityRiskTradeoffsStakeholders | QualityProblem solvingRoot cause |