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| Criterion |  Agile Affinity Estimation |  Operations A3 Problem Solving |  Operations Gemba Walk |
|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 30-90 min | 45-90 min | 30-120 min |
Participantsdifferent | 3-12 | 2-5 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | A3 Report, Action Plan, Root Cause Analysis | Observation Notes, Improvement Ideas |
Tagsno overlap | EstimationBacklogRelative sizing | LeanProblem solvingCoachingOperations | LeanObservationProcessOperations |
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