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| Criterion |  Operations PDCA Cycle |  Innovation Crazy 8s |  Operations Root Cause Tree Analysis |
|---|---|---|---|
Purposedifferent | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. | 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 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. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 1 h bis mehrere Wochen | 8-15 min | 1-3 h |
Participantsdifferent | 1-8 | 1-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | Sketch Set, Idea Shortlist, Direction Options | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | Continuous improvementLeanExperiments | BrainstormingSketchingSpeedDivergenceDesign sprint | Root causeTreeIncidentQuality |
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