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| Criterion |  Operations Gemba Walk |  Agile Affinity Estimation |  Operations Process 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. | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | 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. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 30-120 min | 30-90 min | 1-3 h |
Participantsdifferent | 2-6 | 3-12 | 3-10 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Affinity Size Map, Grouped Estimates, Unclear Items | Process Map, Handoff List, Improvement Backlog |
Tagsno overlap | LeanObservationProcessOperations | EstimationBacklogRelative sizing | ProcessOperationsImprovement |
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