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| Criterion |  Operations PDCA Cycle |  Operations 5 Whys |  Facilitation Decision Jam |  Operations Root Cause Analysis |
|---|---|---|---|---|
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 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. | When a decision is stuck, Decision Jam loosens the knot through structured separation of problem, idea, and selection. The format creates movement without jumping prematurely at the first seemingly elegant answer. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 1 h bis mehrere Wochen | 15-30 min | 60-90 min | 1-4 h |
Participantsdifferent | 1-8 | 2-6 | 4-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | Root cause notes, Countermeasures | Problem Cluster, Prioritized Challenge, Experiment | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | Continuous improvementLeanExperiments | Root causeIncidentLeanProblem solving | FacilitationDecisionProblem solvingWorkshop | Root causeProblem solvingQualityIncident |