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| Criterion |  Innovation Crazy 8s |  Innovation Reverse Brainstorming |  Operations Failure Mode and Effects Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
Purposedifferent | With only a few minutes available and a still-fuzzy solution search, the method forces a wide range of variants. It produces fast sketches before the first idea can settle in, making different directions directly comparable and open to further development. | 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 process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Low | Low | High | Low |
Timedifferent | 8-15 min | 30-60 min | 2-6 h | 30-60 min |
Participantsdifferent | 1-10 | 3-12 | 3-10 | 2-8 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Sketch Set, Idea Shortlist, Direction Options | Reverse Ideas, Risk Themes, Solution Ideas | FMEA Table, Risk Priority, Mitigation Actions | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | BrainstormingSketchingSpeedDivergenceDesign sprint | BrainstormingIdeationCreativityRisk | RiskQualityOperationsRoot cause | Root causeQualityOperations |