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| Criterion |  Operations PDCA Cycle |  Operations 8D Problem Solving |  Product Discovery Hypothesis Prioritization Canvas |
|---|---|---|---|
Purposedifferent | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. | 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 many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 1 h bis mehrere Wochen | 1-6 Wochen | 60-90 min |
Participantsdifferent | 1-8 | 4-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Prioritization Canvas, Hypothesis Backlog |
Tagsno overlap | Continuous improvementLeanExperiments | QualityProblem solvingRoot cause | ExperimentsPrioritizationDiscoveryHypothesis |
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