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| Criterion |  Product Strategy Lean Canvas |  UX Research Card Sorting |  Operations 8D Problem Solving |
|---|---|---|---|
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 content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Medium | Low | High |
Timedifferent | 45-90 min | 20-45 min | 1-6 Wochen |
Participantsdifferent | 1-6 | Based on research question | 4-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Content groups, Label set, IA hypotheses | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | StartupLeanAssumptionsBusiness model | Information architectureNavigationStructure | QualityProblem solvingRoot cause |
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