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| Criterion |  Product Strategy Product Canvas |  Operations 5 Whys |  Decision Making Assumption Surfacing |
|---|---|---|---|
Purposedifferent | When product goal and feature scope don't yet fit cleanly together, it creates a shared working picture. It connects need, core features, and assumptions into a solid starting point. | 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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 1-2 h | 15-30 min | 45-90 min |
Participantsdifferent | 2-8 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Product Canvas, Product Assumptions, Scope Notes | Root cause notes, Countermeasures | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | CanvasDiscoveryScope | Root causeIncidentLeanProblem solving | AssumptionsRiskDecisionDiscovery |
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