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| Criterion |  Product Strategy Lean Canvas |  DevOps Blameless Postmortem |  Operations Barrier Analysis |
|---|---|---|---|
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. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 45-90 min | 30-90 min | 2-4 h |
Participantsdifferent | 1-6 | 3-12 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Postmortem Doc, Action Items, Timeline | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | StartupLeanAssumptionsBusiness model | Site Reliability EngineeringIncidentLearningReliability | Root causeSafetyIncident |
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