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| Criterion |  Innovation Reverse Brainstorming |  Operations 5 Whys |  Operations Kepner-Tregoe |
|---|---|---|---|
Purposedifferent | For persistent errors or blockages, the method shifts the view to the opposite of the desired effect. It exposes the mechanics of failure and makes hidden causes easier to grasp. This makes improvement more concrete and the problem clearer. | 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 disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Low | Low | High |
Timedifferent | 30-60 min | 15-30 min | 2-8 h |
Participantsdifferent | 3-12 | 2-6 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Reverse Ideas, Risk Themes, Solution Ideas | Root cause notes, Countermeasures | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | BrainstormingIdeationCreativityRisk | Root causeIncidentLeanProblem solving | Problem solvingRoot causeDecisionOperations |
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