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| Criterion |  Innovation Lean Startup |  Engineering Hypothesis-Driven Troubleshooting |  Operations 5 Whys |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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 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 | Medium | Medium | Low | Medium |
Timedifferent | Wochen bis Monate je Lernzyklus | 30-240 min | 15-30 min | 45-90 min |
Participantsdifferent | 2-8 | 1-6 | 2-6 | 2-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Root cause notes, Countermeasures | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | LeanStartupValidationMVP | TroubleshootingProblem solvingDiagnosis | Root causeIncidentLeanProblem solving | LeanProblem solvingCoachingOperations |