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| Criterion |  UX Research Surveys |  Growth A/B Testing |  Operations A3 Problem Solving |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | When a topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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. | 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 | High | Medium | Low |
Timedifferent | 3-14 Tage | 1-4 Wochen | 45-90 min | 15-30 min |
Participantsdifferent | 50+ | 1-6 | 2-5 | 2-6 |
Formatdifferent | Async | Async | Workshop + async | Workshop |
Outputdifferent | Survey Results, Charts, Segment Insights | Experiment results, Decision log, Learning summary | A3 Report, Action Plan, Root Cause Analysis | Root cause notes, Countermeasures |
Tagsno overlap | QuantitativeResearchValidation | ExperimentsGrowthAnalyticsValidation | LeanProblem solvingCoachingOperations | Root causeIncidentLeanProblem solving |