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| Criterion |  Operations A3 Problem Solving |  Agile Affinity Estimation |  Operations Kepner-Tregoe |  Agile Bucket System |
|---|---|---|---|---|
Purposedifferent | 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 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 disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 45-90 min | 30-90 min | 2-8 h | 30-90 min |
Participantsdifferent | 2-5 | 3-12 | 2-8 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Affinity Size Map, Grouped Estimates, Unclear Items | Problem Analysis, Decision Analysis, Risk Plan | Bucketed Backlog, Relative Estimates, Split Candidates |
Tagsno overlap | LeanProblem solvingCoachingOperations | EstimationBacklogRelative sizing | Problem solvingRoot causeDecisionOperations | EstimationBacklogRelative sizing |