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| Criterion |  DevOps Blameless Postmortem |  Product Strategy Lean Canvas |  Business Strategy 5-Minuten VC-Check |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | The 5-Minute VC Check clarifies opportunities and strategic options at the earliest idea stage. It compares problem quality, customer willingness to pay, alternatives, differentiation, and market potential, and captures the result as a VC-check note, go/sharpen/park decision, and risk list. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 30-90 min | 45-90 min | 5-15 min | 45-60 min |
Participantsdifferent | 3-12 | 1-6 | 1-5 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Lean Canvas, Core Assumptions, Experiment Backlog | VC-check note, Go/sharpen/park decision, Risk and assumption list, Next validation step | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | StartupLeanAssumptionsBusiness model | StartupValidationCompetition | AssumptionsRiskExperimentsValidation |