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| Criterion |  Innovation Lean Startup |  Innovation Design Thinking |  Operations 5 Whys |
|---|---|---|---|
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. | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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. |
Complexitydifferent | Medium | High | Low |
Timedifferent | Wochen bis Monate je Lernzyklus | 1 Tag bis mehrere Wochen | 15-30 min |
Participantsdifferent | 2-8 | 4-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Problem Statement, Prototype, Test Learnings | Root cause notes, Countermeasures |
Tagsno overlap | LeanStartupValidationMVP | InnovationPrototypeResearch | Root causeIncidentLeanProblem solving |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
