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| Criterion |  Operations Waste Analysis |  Delivery Value Stream Mapping |  Operations Gemba Walk |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | For a process that keeps people busy but creates little value, the method exposes waste. It directs attention to unnecessary movement, waiting times, rework, and overdelivery. | When delivery work dissolves into wait times, handoffs, and hidden effort, Value Stream Mapping makes the actual flow visible. The method exposes bottlenecks, idle time, and feedback loops so lead time and improvement levers become tangible. | 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 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 | Medium | Low | Medium |
Timedifferent | 45-120 min | 1-3 h | 30-120 min | 45-90 min |
Participantsdifferent | 2-8 | 4-10 | 2-6 | 2-5 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Waste Map, Prioritized Waste, Improvement Backlog | Current-state map, Future-state map, Bottleneck list | Observation Notes, Improvement Ideas | A3 Report, Action Plan, Root Cause Analysis |
Tags1 shared | WasteLeanProcess improvement | LeanFlowWasteDelivery | LeanObservationProcessOperations | LeanProblem solvingCoachingOperations |