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Selected:Working BackwardsFault Tree Analysis8D Problem SolvingATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Product Discovery Working Backwards |  Operations Fault Tree Analysis |  Operations 8D Problem Solving |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | When the target state and benefit need to be clear first, it thinks backward from the desired outcome into the product logic. It sharpens vision, objections, and value proposition before elaboration. | 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. | 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. | 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 | Medium | High | High | High |
Timedifferent | 4-8 h, mehrere Iterationen | 2-6 h | 1-6 Wochen | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 2-6 | 3-8 | 4-10 | Evaluation team, architects, and relevant stakeholders |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Future Press Release, FAQ, Vision Statement | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | 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 | VisionNarrativeAlignment | RiskRoot causeSafety | QualityProblem solvingRoot cause | ArchitectureQualityRiskTradeoffsStakeholders |