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| Criterion |  Operations Gemba Walk |  Knowledge Modeling IBIS |  Decision Making DACI |  Operations RACI Matrix |
|---|---|---|---|---|
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. | 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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | With unclear responsibilities across several roles or areas, the method creates unambiguous accountability logic. It reduces friction because decision, execution, contribution, and information become separately visible. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 30-120 min | 1-3 h | 30-60 min | 45-90 min |
Participantsdifferent | 2-6 | 2-8 | 2-10 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Issue Map, Positions, Argument Notes | DACI Matrix, Decision Owner, Decision Log | RACI Matrix, Responsibility Map, Decision Notes |
Tagsno overlap | LeanObservationProcessOperations | RationaleKnowledgeDecision | DecisionRolesGovernanceAlignment | RolesResponsibilityGovernanceOperations |