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| Criterion |  Operations A3 Problem Solving |  Product Strategy Counter Metrics |  Operations Gemba Walk |  Engineering Goal Question Metric |
|---|---|---|---|---|
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. | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 45-90 min | 30-60 min | 30-120 min | 90-180 min |
Participantsdifferent | 2-5 | 2-6 | 2-6 | 3-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Counter Metric List, Guardrail Definitions | Observation Notes, Improvement Ideas | GQM Table, Metric Profiles |
Tagsno overlap | LeanProblem solvingCoachingOperations | MetricsMeasurementStrategyExperiments | LeanObservationProcessOperations | MetricsMeasurementEngineeringAlignment |