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| Criterion |  Innovation Brainwriting |  Innovation Lean Startup |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | When loud voices or hierarchy distort the idea search, the method creates a quiet entry into joint development. It gives everyone thinking space and gathers contributions without social brakes, making diversity more visible and easier to build on. | 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 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 | Low | Medium | Low |
Timedifferent | 15-30 min | Wochen bis Monate je Lernzyklus | 15-30 min |
Participantsdifferent | 3-12 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Idea sheets, Expanded concepts, Prioritized list | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Root cause notes, Countermeasures |
Tagsno overlap | BrainstormingCollaborationInclusionIdeas | LeanStartupValidationMVP | Root causeIncidentLeanProblem solving |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
