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| Criterion |  Operations 5 Whys |  Operations Ivy Lee Method |  Innovation Lean Startup |
|---|---|---|---|
Purposedifferent | 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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | 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 | Low | Low | Medium |
Timedifferent | 15-30 min | 5-10 min daily | Wochen bis Monate je Lernzyklus |
Participantsdifferent | 2-6 | 1 | 2-8 |
Formatdifferent | Workshop | Async | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | Daily Priority List, Completion Notes | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision |
Tagsno overlap | Root causeIncidentLeanProblem solving | PrioritizationProductivityExecution | LeanStartupValidationMVP |
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