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| Criterion |  Product Strategy Lean Canvas |  Operations 8D Problem Solving |  UX Research Card Sorting |
|---|---|---|---|
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. | 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. | 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. |
Complexitydifferent | Medium | High | Low |
Timedifferent | 45-90 min | 1-6 Wochen | 20-45 min |
Participantsdifferent | 1-6 | 4-10 | Based on research question |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Content groups, Label set, IA hypotheses |
Tagsno overlap | StartupLeanAssumptionsBusiness model | QualityProblem solvingRoot cause | Information architectureNavigationStructure |
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