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| Criterion |  Operations Causal Factor Analysis |  Operations 5 Whys |  Innovation Morphological 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 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. | For a search for solutions with many degrees of freedom, a grid emerges for systematic combinations. The method separates features, variants, and exclusion criteria, so the space gets explored deliberately. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 2-6 h | 15-30 min | 1-3 h |
Participantsdifferent | 3-10 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Root cause notes, Countermeasures | Morphological Box, Concept Combinations, Idea Shortlist |
Tagsno overlap | CausalityIncidentRoot causeTimeline | Root causeIncidentLeanProblem solving | IdeationInnovationCreativity |
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