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| Criterion |  Operations A3 Problem Solving |  Product Strategy KPI Tree |  UX Research HEART Framework |  Operations 5 Whys |
|---|---|---|---|---|
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 metrics across the organization drift apart, it arranges drivers and effects under one shared logic. It connects customer value, product logic, and decision priorities. The result is captured as a KPI tree and owner list. | Helps clarify observations, needs, and patterns in concrete terms. It groups observations into patterns, questions, and decisions. The result is captured as a HEART-GSM table and dashboard. | 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 | Medium | Low |
Timedifferent | 45-90 min | 90-180 min initial, dann laufend | 120 min initial, dann laufend | 15-30 min |
Participantsdifferent | 2-5 | 3-8 | 3-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | KPI Tree, Owner List | HEART-GSM Table, Dashboard | Root cause notes, Countermeasures |
Tagsno overlap | LeanProblem solvingCoachingOperations | MetricsStrategyAlignmentMeasurement | MetricsUX researchMeasurementSatisfaction | Root causeIncidentLeanProblem solving |