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| Criterion |  Innovation Brainwriting |  Operations Root Cause Tree Analysis |  Operations Causal Factor Analysis |
|---|---|---|---|
Purposedifferent | When loud voices or hierarchy distort the idea search, the method creates a quiet entry into joint development. It gives everyone thinking space and gathers contributions without social brakes, making diversity more visible and easier to build on. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 15-30 min | 1-3 h | 2-6 h |
Participantsdifferent | 3-12 | 2-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Idea sheets, Expanded concepts, Prioritized list | Cause Tree, Evidence Notes, Countermeasures | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | BrainstormingCollaborationInclusionIdeas | Root causeTreeIncidentQuality | CausalityIncidentRoot causeTimeline |
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