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| Criterion |  Operations Accountability Ladder |  Operations Gemba Walk |  Operations Process Mapping |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | With defensive reactions to problems, the method shifts the view from justification to ownership. It makes visible which reaction stage a person or team is currently stuck on. | 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. | With a confusing workflow that has many handoffs, the method makes the actual process visible. It shows where work is passed on, delayed, or duplicated, so improvement targets the right spots. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 20-45 min | 30-120 min | 1-3 h | 45-90 min |
Participantsdifferent | 1-8 | 2-6 | 3-10 | 2-5 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Ownership Reflection, Action Commitment, Coaching Notes | Observation Notes, Improvement Ideas | Process Map, Handoff List, Improvement Backlog | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | ResponsibilityLeadershipTeam | LeanObservationProcessOperations | ProcessOperationsImprovement | LeanProblem solvingCoachingOperations |