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| Criterion |  Operations A3 Problem Solving |  Operations 5 Whys |  Innovation Lean Startup |
|---|---|---|---|
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. | 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. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 45-90 min | 15-30 min | Wochen bis Monate je Lernzyklus |
Participantsdifferent | 2-5 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Root cause notes, Countermeasures | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision |
Tags1 shared | LeanProblem solvingCoachingOperations | Root causeIncidentLeanProblem solving | LeanStartupValidationMVP |
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