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| Criterion |  Operations Gemba Walk |  Decision Making Decision Tree |  Knowledge Modeling IBIS |  Decision Making Argument Mapping |
|---|---|---|---|---|
Purposedifferent | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | For decisions with follow-on paths and dependencies, a linear comparison is often not enough. A Decision Tree shows how options branch under conditions and which consequences hang on each branch. | 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. | 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 | 30-120 min | 30-90 min | 1-3 h | 1-3 h |
Participantsdifferent | 2-6 | 1-6 | 2-8 | 1-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Decision Tree, Option Map, Assumption List | Issue Map, Positions, Argument Notes | Argument Map, Evidence Gaps, Decision Rationale |
Tagsno overlap | LeanObservationProcessOperations | DecisionTreeOptions | RationaleKnowledgeDecision | SensemakingDecisionRationale |