View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations Gemba Walk |  Growth A/B Testing |  Product Strategy ICE Scoring |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitydifferent | Low | High | Low | Medium |
Timedifferent | 30-120 min | 1-4 Wochen | 30-60 min | 45-90 min |
Participantsdifferent | 2-6 | 1-6 | 2-8 | 2-5 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Experiment results, Decision log, Learning summary | ICE Table, Top Idea List | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | LeanObservationProcessOperations | ExperimentsGrowthAnalyticsValidation | PrioritizationScoringGrowthDecision | LeanProblem solvingCoachingOperations |