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Selected:North Star MetricFault Tree Analysis8D Problem SolvingATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Growth North Star Metric |  Operations Fault Tree Analysis |  Operations 8D Problem Solving |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | When product teams track many metrics, the view of the actual customer outcome easily gets lost. A North Star Metric bundles growth, usage, and value contribution into one signal that makes the system's direction visible. | 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 | 1-2 h | 2-6 h | 1-6 Wochen | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 3-8 | 3-8 | 4-10 | Evaluation team, architects, and relevant stakeholders |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | North Star metric, Input metric tree, Measurement cadence | 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 | GrowthMetricsAlignmentRetention | RiskRoot causeSafety | QualityProblem solvingRoot cause | ArchitectureQualityRiskTradeoffsStakeholders |