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| Criterion |  Agile Ideal Days |  Operations A3 Problem Solving |  Operations Gemba Walk |  Facilitation Dot Estimation |
|---|---|---|---|---|
Purposedifferent | When effort needs to be thought of as real working time, it offers a simple common denominator for comparison. It sorts work by value, risk, and delivery ability. The result is captured as Ideal Day Estimates, Assumption Notes, and Capacity Caveats. | 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. | When size or effort can only be estimated roughly, Dot Estimation condenses the group's experience into a quick range. It turns individual contributions into a visible selection. The result is captured as an Effort Heatmap, Risk Signals, and Discussion Targets. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 15-60 min | 45-90 min | 30-120 min | 5-20 min |
Participantsdifferent | 2-9 | 2-5 | 2-6 | 3-20 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Ideal Day Estimates, Assumption Notes, Capacity Caveats | A3 Report, Action Plan, Root Cause Analysis | Observation Notes, Improvement Ideas | Effort Heatmap, Risk Signals, Discussion Targets |
Tagsno overlap | EstimationEffortAgile | LeanProblem solvingCoachingOperations | LeanObservationProcessOperations | EstimationEffortRisk |