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| Criterion |  Operations Learning Review |  Innovation Lean Startup |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Agile 4Ls Retrospective |
|---|---|---|---|---|
Purposedifferent | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. | 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. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. |
Complexitydifferent | Medium | Medium | High | Low |
Timedifferent | 1-3 h | Wochen bis Monate je Lernzyklus | Several meetings plus preparation and analysis; total effort depends on scope | 45–75 min |
Participantsdifferent | 3-10 | 2-8 | Evaluation team, architects, and relevant stakeholders | Team members involved |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Learning Review Notes, System Factors, Improvement 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 | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | LearningRetrospectiveIncidentOperations | LeanStartupValidationMVP | ArchitectureQualityRiskTradeoffsStakeholders | RetrospectiveLearningReflectionTeam |