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| Criterion |  Operations 5 Whys |  Innovation Lean Startup |  Operations Eat the Frog |  Operations Ivy Lee Method |
|---|---|---|---|---|
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. | 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. | The method protects energy and attention for the task that creates the largest progress and is often postponed. | 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. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 15-30 min | Wochen bis Monate je Lernzyklus | 15-90 min daily | 5-10 min daily |
Participantsdifferent | 2-6 | 2-8 | 1 | 1 |
Formatdifferent | Workshop | Workshop + async | Async | Async |
Outputdifferent | Root cause notes, Countermeasures | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Priority Task, Completion Note, Daily Focus | Daily Priority List, Completion Notes |
Tagsno overlap | Root causeIncidentLeanProblem solving | LeanStartupValidationMVP | PrioritizationProductivityFocusExecution | PrioritizationProductivityExecution |