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| Criterion |  Product Strategy Lean Canvas |  DevOps Incident Command |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. | 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 | Medium | Medium | High | Low |
Timedifferent | 45-90 min | As needed | Several meetings plus preparation and analysis; total effort depends on scope | 15-30 min |
Participantsdifferent | 1-6 | 4-15 | Evaluation team, architects, and relevant stakeholders | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Incident Log, Action Tracker, Stakeholder Updates | 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 | StartupLeanAssumptionsBusiness model | IncidentOperationsReliability | ArchitectureQualityRiskTradeoffsStakeholders | Root causeIncidentLeanProblem solving |