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Selected:Lean StartupRoot Cause Tree AnalysisATAM (Architecture Tradeoff Analysis Method)Failure Mode and Effects Analysis
| Criterion |  Innovation Lean Startup |  Operations Root Cause Tree Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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 a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | Wochen bis Monate je Lernzyklus | 1-3 h | Several meetings plus preparation and analysis; total effort depends on scope | 2-6 h |
Participantsdifferent | 2-8 | 2-8 | Evaluation team, architects, and relevant stakeholders | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Cause Tree, Evidence Notes, Countermeasures | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | LeanStartupValidationMVP | Root causeTreeIncidentQuality | ArchitectureQualityRiskTradeoffsStakeholders | RiskQualityOperationsRoot cause |