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| Criterion |  Agile Bucket System |  Decision Making PERT Estimation |  Operations A3 Problem Solving |
|---|---|---|---|
Purposedifferent | When a large batch of work needs a fast, rough estimate, it sorts items into predefined size buckets. It sorts work by value, risk, and delivery ability. The result is captured as a Bucketed Backlog, Relative Estimates, and Split Candidates. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-90 min | 15-45 min | 45-90 min |
Participantsdifferent | 3-12 | 1-8 | 2-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Bucketed Backlog, Relative Estimates, Split Candidates | PERT Estimate, Expected Value, Risk Notes | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | EstimationBacklogRelative sizing | EstimationUncertaintyRisk | LeanProblem solvingCoachingOperations |
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