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| Criterion |  Product Discovery Smoke Test |  Product Strategy ICE Scoring |  Operations A3 Problem Solving |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | When ideas need sorting quickly, it condenses impact, confidence, and effort into one compact score. It connects customer value, product logic, and decision priorities. The result is captured as an ICE table and top-ideas list. | 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 | Low | Low | Medium | Low |
Timedifferent | 1-5 Tage | 30-60 min | 45-90 min | 15-30 min |
Participantsdifferent | Nutzertraffic | 2-8 | 2-5 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Interest Metrics, Conversion Signal, Learning Note | ICE Table, Top Idea List | A3 Report, Action Plan, Root Cause Analysis | Root cause notes, Countermeasures |
Tagsno overlap | ValidationExperimentsDemandGrowth | PrioritizationScoringGrowthDecision | LeanProblem solvingCoachingOperations | Root causeIncidentLeanProblem solving |