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Selected:ATAM (Architecture Tradeoff Analysis Method)Lean Startup5 WhysFailure Mode and Effects Analysis
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Innovation Lean Startup |  Operations 5 Whys |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | 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 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 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. | 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 | High | Medium | Low | High |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | Wochen bis Monate je Lernzyklus | 15-30 min | 2-6 h |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 2-8 | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Root cause notes, Countermeasures | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | LeanStartupValidationMVP | Root causeIncidentLeanProblem solving | RiskQualityOperationsRoot cause |