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Selected:Root Cause AnalysisLean StartupATAM (Architecture Tradeoff Analysis Method)8D Problem Solving
| Criterion |  Operations Root Cause Analysis |  Innovation Lean Startup |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | 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. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | 1-4 h | Wochen bis Monate je Lernzyklus | Several meetings plus preparation and analysis; total effort depends on scope | 1-6 Wochen |
Participantsdifferent | 3-8 | 2-8 | Evaluation team, architects, and relevant stakeholders | 4-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | 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 | Root causeProblem solvingQualityIncident | LeanStartupValidationMVP | ArchitectureQualityRiskTradeoffsStakeholders | QualityProblem solvingRoot cause |