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| Criterion |  Operations Causal Factor Analysis |  UX Research Affinity Diagramming |  Operations A3 Problem Solving |
|---|---|---|---|
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 research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 2-6 h | 45–90 min | 45-90 min |
Participantsdifferent | 3-10 | 3-10 | 2-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Theme clusters, Insight statements, Opportunity areas | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | CausalityIncidentRoot causeTimeline | SynthesisQualitativeRoot cause | LeanProblem solvingCoachingOperations |
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