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| Criterion |  Operations Causal Factor Analysis |  Operations 8D Problem Solving |  Product Discovery Experiment Canvas |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | 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 experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. | 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 | High | High | Low | Medium |
Timedifferent | 2-6 h | 1-6 Wochen | 30-60 min | 1-4 h |
Participantsdifferent | 3-10 | 4-10 | 1-5 | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Completed Experiment Canvas, Success Metric | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | CausalityIncidentRoot causeTimeline | QualityProblem solvingRoot cause | ExperimentsValidationDiscoveryHypothesis | Root causeProblem solvingQualityIncident |