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| Criterion |  Operations PDCA Cycle |  Knowledge Modeling IBIS |  Operations Root Cause Tree Analysis |  Decision Making Argument Mapping |
|---|---|---|---|---|
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. | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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. | When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 1 h bis mehrere Wochen | 1-3 h | 1-3 h | 1-3 h |
Participantsdifferent | 1-8 | 2-8 | 2-8 | 1-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | Issue Map, Positions, Argument Notes | Cause Tree, Evidence Notes, Countermeasures | Argument Map, Evidence Gaps, Decision Rationale |
Tagsno overlap | Continuous improvementLeanExperiments | RationaleKnowledgeDecision | Root causeTreeIncidentQuality | SensemakingDecisionRationale |