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| Criterion |  UX Design Lean UX Canvas |  Product Strategy DIBB |  Operations 8D Problem Solving |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | The Lean UX Canvas helps clarify user behavior, touchpoints, and concept decisions. It makes assumptions and desired outcomes visible and captures the result as a completed canvas, hypothesis list, and first experiment. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | 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. | 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 | Medium | Low | High | Low |
Timedifferent | 2-3 h | 1-2 h | 1-6 Wochen | 15-30 min |
Participantsdifferent | 3-8 | 2-8 | 4-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Completed Lean UX Canvas, Hypothesis list, First experiment | DIBB document, Belief list, Bet list, Learning report | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Root cause notes, Countermeasures |
Tagsno overlap | CanvasHypothesisOutcomesDiscovery | StrategyDecisionAssumptionsHypothesis | QualityProblem solvingRoot cause | Root causeIncidentLeanProblem solving |