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Selected:Failure Mode and Effects AnalysisLean StartupATAM (Architecture Tradeoff Analysis Method)5 Whys
| Criterion |  Operations Failure Mode and Effects Analysis |  Innovation Lean Startup |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | 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 a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | High | Medium | High | Low |
Timedifferent | 2-6 h | Wochen bis Monate je Lernzyklus | Several meetings plus preparation and analysis; total effort depends on scope | 15-30 min |
Participantsdifferent | 3-10 | 2-8 | Evaluation team, architects, and relevant stakeholders | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | 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 | Root cause notes, Countermeasures |
Tagsno overlap | RiskQualityOperationsRoot cause | LeanStartupValidationMVP | ArchitectureQualityRiskTradeoffsStakeholders | Root causeIncidentLeanProblem solving |