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| Criterion |  Operations Causal Factor Analysis |  Product Discovery Hypothesis Prioritization Canvas |  Operations 5 Whys |
|---|---|---|---|
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. | 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. | 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 | High | Medium | Low |
Timedifferent | 2-6 h | 60-90 min | 15-30 min |
Participantsdifferent | 3-10 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Prioritization Canvas, Hypothesis Backlog | Root cause notes, Countermeasures |
Tagsno overlap | CausalityIncidentRoot causeTimeline | ExperimentsPrioritizationDiscoveryHypothesis | Root causeIncidentLeanProblem solving |
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