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| Criterion |  Operations A3 Problem Solving |  Product Strategy Counter Metrics |  DevOps Blameless Postmortem |
|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | When a headline metric could mask side effects, it adds guardrail signals against unwanted outcomes. It connects customer value, product logic, and decision priorities. The result is captured as a counter-metric list and guardrail definitions. | 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. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 45-90 min | 30-60 min | 30-90 min |
Participantsdifferent | 2-5 | 2-6 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Counter Metric List, Guardrail Definitions | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | LeanProblem solvingCoachingOperations | MetricsMeasurementStrategyExperiments | Site Reliability EngineeringIncidentLearningReliability |
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