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| Criterion |  Product Strategy Lean Canvas |  UX Research Empathy Mapping |  UX Research User Interviews |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | When a lot is assumed about a target group but little is seen jointly, empathy mapping makes knowledge and gaps directly comparable. The picture also shows which assumptions hold up and where evidence is missing. | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | 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 | Low |
Timedifferent | 45-90 min | 30–60 min | 30–60 min per interview | 45-90 min |
Participantsdifferent | 1-6 | 4-8 | 1 participant per interview | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Empathy Map, Assumptions List, Research Gaps | Interview Notes, Themes, Insight Summary | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | StartupLeanAssumptionsBusiness model | SynthesisQualitativeWorkshop | QualitativeResearchCustomerDiscovery | AssumptionsRiskDecisionDiscovery |